Revert "feat: prevent versioned 3P GitHub actions in PR builds (aws-observability#475)"

This reverts commit 2de80d4.

Author: ezhang6811

.github/actions/image_scan/action.yml

@@ -32,7 +32,7 @@ runs:
     run: docker logout public.ecr.aws
 
   - name: Run Trivy vulnerability scanner on image
-    uses: aquasecurity/trivy-action@b6643a29fecd7f34b3597bc6acb0a98b03d33ff8 # v0.33.1
+    uses: aquasecurity/trivy-action@master
     with:
       image-ref: ${{ inputs.image-ref }}
       severity: ${{ inputs.severity }}

.github/workflows/pr-build.yml

@@ -10,61 +10,6 @@ permissions:
   contents: read
 
 jobs:
-  static-code-checks:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 #5.0.0
-        with:
-          fetch-depth: 0
-          
-      - name: Check CHANGELOG
-        if: always()
-        run: |
-          # Check if PR is from workflows bot or dependabot
-          if [[ "${{ github.event.pull_request.user.login }}" == "aws-application-signals-bot" ]]; then
-            echo "Skipping check: PR from aws-application-signals-bot"
-            exit 0
-          fi
-          
-          if [[ "${{ github.event.pull_request.user.login }}" == "dependabot[bot]" ]]; then
-            echo "Skipping check: PR from dependabot"
-            exit 0
-          fi
-          
-          # Check for skip changelog label
-          if echo '${{ toJSON(github.event.pull_request.labels.*.name) }}' | jq -r '.[]' | grep -q "skip changelog"; then
-            echo "Skipping check: skip changelog label found"
-            exit 0
-          fi
-          
-          # Fetch base branch and check for CHANGELOG modifications
-          git fetch origin ${{ github.base_ref }}
-          if git diff --name-only origin/${{ github.base_ref }}..HEAD | grep -q "CHANGELOG.md"; then
-            echo "CHANGELOG.md entry found - check passed"
-            exit 0
-          fi
-          
-          echo "It looks like you didn't add an entry to CHANGELOG.md. If this change affects the SDK behavior, please update CHANGELOG.md and link this PR in your entry. If this PR does not need a CHANGELOG entry, you can add the 'Skip Changelog' label to this PR."
-          exit 1
-
-      - name: Check for versioned GitHub actions
-        if: always()
-        run: |
-          # Get changed GitHub workflow/action files
-          CHANGED_FILES=$(git diff --name-only origin/${{ github.base_ref }}..HEAD | grep -E "^\.github/(workflows|actions)/.*\.ya?ml$" || true)
-          
-          if [ -n "$CHANGED_FILES" ]; then
-            # Check for any versioned actions, excluding comments and this validation script
-            VIOLATIONS=$(grep -Hn "uses:.*@v" $CHANGED_FILES | grep -v "grep.*uses:.*@v" | grep -v "#.*@v" || true)
-            if [ -n "$VIOLATIONS" ]; then
-              echo "Found versioned GitHub actions. Use commit SHAs instead:"
-              echo "$VIOLATIONS"
-              exit 1
-            fi
-          fi
-          
-          echo "No versioned actions found in changed files"
-
   build:
     runs-on: ubuntu-latest
     strategy: