v0.8.2: rewrite custom-role Description to drop module-internal 'Step.4' jargon

The 'Azure Stack HCI Update Operator' custom role ships into the Azure
RBAC plane: its Description shows up in the Azure portal 'Custom roles'
blade, in 'az role definition list' / Get-AzRoleDefinition output, and
in any RBAC audit / governance tooling. Referencing 'Step.4' there is
confusing for anyone outside the AzLocal.UpdateManagement module - the
step number is a module-private concept, not a user-facing one.

Was:
  Can view and apply updates on Azure Local clusters, manage UpdateRing
  tags, and read the fleet-connectivity scopes (Arc machines, edge-device
  NICs, Azure Resource Bridges) required by Step.4.

Now:
  Can read and apply Azure Local cluster updates, manage UpdateRing tags,
  and read the fleet-connectivity inventory (Arc-enabled machines,
  edge-device NICs, Azure Resource Bridges) needed to assess pre-update
  connectivity.

Same RBAC grant; portable, audit-friendly wording.

Updated in all 6 sites that ship/document the role definition:
- Automation-Pipeline-Examples/azlocal-update-management-custom-role.json
  (the file 'az role definition create' consumes)
- Automation-Pipeline-Examples/README.md (inline JSON block in section 4.1
  + the Option 2 expanding here-string)
- docs/rbac.md (first JSON block + Option 2 here-string + MG-scope variant)

CHANGELOG v0.7.82 entry intentionally NOT touched - it describes what
shipped at that time and is historical.

No Pester pin on the Description string; manifest unaffected. JSON still
parses, file still BOM-free (first byte 0x7B).

Author: NeilBird

AzLocal.UpdateManagement/Automation-Pipeline-Examples/README.md

@@ -160,7 +160,7 @@ The recommended MG default is shown in the JSON below. Whichever path you pick,
 {
   "Name": "Azure Stack HCI Update Operator",
   "IsCustom": true,
-  "Description": "Can view and apply updates on Azure Local clusters, manage UpdateRing tags, and read the fleet-connectivity scopes (Arc machines, edge-device NICs, Azure Resource Bridges) required by Step.4.",
+  "Description": "Can read and apply Azure Local cluster updates, manage UpdateRing tags, and read the fleet-connectivity inventory (Arc-enabled machines, edge-device NICs, Azure Resource Bridges) needed to assess pre-update connectivity.",
   "Actions": [
     "Microsoft.AzureStackHCI/clusters/read",
     "Microsoft.AzureStackHCI/clusters/updateSummaries/read",
@@ -228,7 +228,7 @@ az role definition create --role-definition ./azlocal-update-management-custom-r
 {
   "Name": "Azure Stack HCI Update Operator",
   "IsCustom": true,
-  "Description": "Can view and apply updates on Azure Local clusters, manage UpdateRing tags, and read the fleet-connectivity scopes (Arc machines, edge-device NICs, Azure Resource Bridges) required by Step.4.",
+  "Description": "Can read and apply Azure Local cluster updates, manage UpdateRing tags, and read the fleet-connectivity inventory (Arc-enabled machines, edge-device NICs, Azure Resource Bridges) needed to assess pre-update connectivity.",
   "Actions": [
     "Microsoft.AzureStackHCI/clusters/read",
     "Microsoft.AzureStackHCI/clusters/updateSummaries/read",

AzLocal.UpdateManagement/Automation-Pipeline-Examples/azlocal-update-management-custom-role.json

@@ -1,7 +1,7 @@
 {
   "Name": "Azure Stack HCI Update Operator",
   "IsCustom": true,
-  "Description": "Can view and apply updates on Azure Local clusters, manage UpdateRing tags, and read the fleet-connectivity scopes (Arc machines, edge-device NICs, Azure Resource Bridges) required by Step.4.",
+  "Description": "Can read and apply Azure Local cluster updates, manage UpdateRing tags, and read the fleet-connectivity inventory (Arc-enabled machines, edge-device NICs, Azure Resource Bridges) needed to assess pre-update connectivity.",
   "Actions": [
     "Microsoft.AzureStackHCI/clusters/read",
     "Microsoft.AzureStackHCI/clusters/updateSummaries/read",

AzLocal.UpdateManagement/docs/rbac.md

@@ -57,7 +57,7 @@ If you need a least-privilege custom role specifically for update operations:
 {
   "Name": "Azure Stack HCI Update Operator",
   "IsCustom": true,
-  "Description": "Can view and apply updates on Azure Local clusters, manage UpdateRing tags, and read the fleet-connectivity scopes (Arc machines, edge-device NICs, Azure Resource Bridges) required by Step.4.",
+  "Description": "Can read and apply Azure Local cluster updates, manage UpdateRing tags, and read the fleet-connectivity inventory (Arc-enabled machines, edge-device NICs, Azure Resource Bridges) needed to assess pre-update connectivity.",
   "Actions": [
     "Microsoft.AzureStackHCI/clusters/read",
     "Microsoft.AzureStackHCI/clusters/updateSummaries/read",
@@ -104,7 +104,7 @@ az role definition create --role-definition ./azlocal-update-management-custom-r
 {
   "Name": "Azure Stack HCI Update Operator",
   "IsCustom": true,
-  "Description": "Can view and apply updates on Azure Local clusters, manage UpdateRing tags, and read the fleet-connectivity scopes (Arc machines, edge-device NICs, Azure Resource Bridges) required by Step.4.",
+  "Description": "Can read and apply Azure Local cluster updates, manage UpdateRing tags, and read the fleet-connectivity inventory (Arc-enabled machines, edge-device NICs, Azure Resource Bridges) needed to assess pre-update connectivity.",
   "Actions": [
     "Microsoft.AzureStackHCI/clusters/read",
     "Microsoft.AzureStackHCI/clusters/updateSummaries/read",
@@ -157,7 +157,7 @@ Replace the per-subscription entry shown above with one (or more) management-gro
 {
   "Name": "Azure Stack HCI Update Operator",
   "IsCustom": true,
-  "Description": "Can view and apply updates on Azure Local clusters, manage UpdateRing tags, and read the fleet-connectivity scopes (Arc machines, edge-device NICs, Azure Resource Bridges) required by Step.4.",
+  "Description": "Can read and apply Azure Local cluster updates, manage UpdateRing tags, and read the fleet-connectivity inventory (Arc-enabled machines, edge-device NICs, Azure Resource Bridges) needed to assess pre-update connectivity.",
   "Actions": [
     "Microsoft.AzureStackHCI/clusters/read",
     "Microsoft.AzureStackHCI/clusters/updateSummaries/read",