azure-pipelines: specify pool.hostArchitecture correctly

We need to specify 'arm64' for the hostArchitecture in 1ES pipeline
templates so the correct tasks are installed/used on ARM machines.

Defaults to 'amd64' (for x86-based hosts).

Signed-off-by: Matthew John Cheetham <mjcheetham@outlook.com>

Author: mjcheetham

.azure-pipelines/release.yml

@@ -35,18 +35,21 @@ parameters:
         jobName: 'Windows (x86)'
         runtime: win-x86
         pool: GitClientPME-1ESHostedPool-intel-pc
+        poolArch: amd64
         image: win-x86_64-ado1es
         os: windows
       - id: windows_x64
         jobName: 'Windows (x64)'
         runtime: win-x64
         pool: GitClientPME-1ESHostedPool-intel-pc
+        poolArch: amd64
         image: win-x86_64-ado1es
         os: windows
       - id: windows_arm64
         jobName: 'Windows (ARM64)'
         runtime: win-arm64
         pool: GitClientPME-1ESHostedPool-arm64-pc
+        poolArch: arm64
         image: win-arm64-ado1es
         os: windows
 
@@ -73,12 +76,14 @@ parameters:
         jobName: 'Linux (x64)'
         runtime: linux-x64
         pool: GitClientPME-1ESHostedPool-intel-pc
+        poolArch: amd64
         image: ubuntu-x86_64-ado1es
         os: linux
       - id: linux_arm64
         jobName: 'Linux (ARM64)'
         runtime: linux-arm64
         pool: GitClientPME-1ESHostedPool-arm64-pc
+        poolArch: arm64
         image: ubuntu-arm64-ado1es
         os: linux
 
@@ -121,6 +126,7 @@ extends:
                 name: ${{ dim.pool }}
                 image: ${{ dim.image }}
                 os: ${{ dim.os }}
+                hostArchitecture: ${{ dim.poolArch }}
               templateContext:
                 outputs:
                   - output: pipelineArtifact
@@ -551,6 +557,7 @@ extends:
                 name: ${{ dim.pool }}
                 image: ${{ dim.image }}
                 os: ${{ dim.os }}
+                hostArchitecture: ${{ dim.poolArch }}
               templateContext:
                 outputs:
                   - output: pipelineArtifact