docs: make package name and command run optional

Not all bugs are tied to a specific package or command invocation.

Co-Authored-By: Claude <claude@anthropic.com>
Signed-off-by: Ryan Petrello <rpetrell@redhat.com>

Author: ryanpetrello

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -9,7 +9,7 @@ body:
       description: The package involved in the failure.
       placeholder: "e.g., torch 2.5.1, numpy 2.1.0"
     validations:
-      required: true
+      required: false
 
   - type: dropdown
     id: build-step
@@ -41,7 +41,7 @@ body:
       description: The exact fromager command with arguments.
       render: shell
     validations:
-      required: true
+      required: false
 
   - type: textarea
     id: bug-description