ci: standardize release branch pattern to release-X.Y.x

Update all CI workflows and actions to use the standardized release branch
naming convention 'release-X.Y.x' (e.g., release-0.3.x) instead of matching
multiple numeric patterns.

Changes:
- Update workflow triggers to match 'release-[0-9]+.[0-9]+.x' pattern
- Update bash regex in setup-test-environment to match new format
- Simplifies branch pattern from multiple variants to single standard

.github/actions/setup-test-environment/action.yml

@@ -47,7 +47,7 @@ runs:
           # Check if PR is targeting a release branch
           TARGET_BRANCH="${{ github.base_ref }}"
 
-          if [[ "$TARGET_BRANCH" =~ ^release-([0-9]+\.){1,3}[0-9]+$ ]]; then
+          if [[ "$TARGET_BRANCH" =~ ^release-[0-9]+\.[0-9]+\.x$ ]]; then
             echo "PR targets release branch: $TARGET_BRANCH"
             echo "Checking if matching branch exists in llama-stack-client-python..."
 

.github/workflows/integration-auth-tests.yml

@@ -6,15 +6,11 @@ on:
   push:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
   pull_request:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
     paths:
       - 'distributions/**'
       - 'llama_stack/**'

.github/workflows/integration-sql-store-tests.yml

@@ -6,15 +6,11 @@ on:
   push:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
   pull_request:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
     paths:
       - 'llama_stack/providers/utils/sqlstore/**'
       - 'tests/integration/sqlstore/**'

.github/workflows/integration-tests.yml

@@ -6,15 +6,11 @@ on:
   push:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
   pull_request:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
     types: [opened, synchronize, reopened]
     paths:
       - 'llama_stack/**'

.github/workflows/integration-vector-io-tests.yml

@@ -6,15 +6,11 @@ on:
   push:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
   pull_request:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
     paths:
       - 'llama_stack/**'
       - '!llama_stack/ui/**'

.github/workflows/pre-commit.yml

@@ -7,9 +7,7 @@ on:
   push:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/main' && github.run_id || github.ref }}

.github/workflows/unit-tests.yml

@@ -6,15 +6,11 @@ on:
   push:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
   pull_request:
     branches:
       - main
-      - 'release-[0-9]+.[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+.[0-9]+'
-      - 'release-[0-9]+.[0-9]+'
+      - 'release-[0-9]+.[0-9]+.x'
     paths:
       - 'llama_stack/**'
       - '!llama_stack/ui/**'