fix DevTest deployment issue due to PR_NUM invalid json error

Author: hardik-desai-nhs

.github/workflows/stage-3-build-images-devtest.yaml

@@ -117,8 +117,14 @@ jobs:
         run: |
 
           echo "The branch is: ${GITHUB_REF}"
-          PR_NUM=$(gh api repos/${{ github.repository }}/commits/${{ github.sha }}/pulls --jq '.[0].number')
-          PR_NUM_TAG="pr${PR_NUM}"
+          PR_NUM=$(gh api repos/${{ github.repository }}/commits/${{ github.sha }}/pulls --jq '.[0].number' 2>/dev/null || true)
+          if [ -n "${PR_NUM}" ] && [ "${PR_NUM}" != "null" ]; then
+              PR_NUM_TAG="pr${PR_NUM}"
+              echo "Tag source: PR (${PR_NUM})"
+          else
+              PR_NUM_TAG="${GITHUB_REF_NAME//\//-}"
+              echo "Tag source: fallback ref (${GITHUB_REF_NAME})"
+          fi
           SHORT_COMMIT_HASH=$(git rev-parse --short ${GITHUB_SHA})
 
 
@@ -149,8 +155,14 @@ jobs:
           GH_TOKEN: ${{ github.token }}
         run: |
 
-          PR_NUM=$(gh api repos/${{ github.repository }}/commits/${{ github.sha }}/pulls --jq '.[0].number')
-          PR_NUM_TAG="pr${PR_NUM}"
+          PR_NUM=$(gh api repos/${{ github.repository }}/commits/${{ github.sha }}/pulls --jq '.[0].number' 2>/dev/null || true)
+          if [ -n "${PR_NUM}" ] && [ "${PR_NUM}" != "null" ]; then
+            PR_NUM_TAG="pr${PR_NUM}"
+            echo "Tag source: PR (${PR_NUM})"
+          else
+            PR_NUM_TAG="${GITHUB_REF_NAME//\//-}"
+            echo "Tag source: fallback ref (${GITHUB_REF_NAME})"
+          fi
           IMAGE_TAG="latest"
 
           if [[ ${{steps.detect-base-image-changes.outputs.BASE_IMAGE_CHANGE}} == 'true' ]]; then
@@ -213,8 +225,14 @@ jobs:
           ENVIRONMENT_TAG: ${{ inputs.environment_tag }}
         continue-on-error: false
         run: |
-          PR_NUM=$(gh api repos/${{ github.repository }}/commits/${{ github.sha }}/pulls --jq '.[0].number')
-          PR_NUM_TAG="pr${PR_NUM}"
+          PR_NUM=$(gh api repos/${{ github.repository }}/commits/${{ github.sha }}/pulls --jq '.[0].number' 2>/dev/null || true)
+          if [ -n "${PR_NUM}" ] && [ "${PR_NUM}" != "null" ]; then
+            PR_NUM_TAG="pr${PR_NUM}"
+            echo "Tag source: PR (${PR_NUM})"
+          else
+            PR_NUM_TAG="${GITHUB_REF_NAME//\//-}"
+            echo "Tag source: fallback ref (${GITHUB_REF_NAME})"
+          fi
           DEVTEST_PR_NUM_TAG="devtest_${PR_NUM_TAG}"
 
           echo "The branch is: ${GITHUB_REF}"