chore: add summary build with commit fest and patch id information

Signed-off-by: Jonathan Gonzalez V. <jonathan.abdiel@gmail.com>

.github/workflows/build-commitfest.yml

@@ -30,6 +30,8 @@ jobs:
     permissions:
       contents: read
       packages: write
+    outputs:
+      tag: ${{ env.TAG }}
     steps:
     - name: Checkout Code
       uses: actions/checkout@v4
@@ -60,3 +62,21 @@ jobs:
         build-args: |
           PG_REPO=https://github.com/postgresql-cfbot/postgresql.git
           PG_BRANCH=${{ env.BRANCH }}
+
+  generate-summary:
+    name: Commit Fest image build
+    runs-on: ubuntu-22.04
+    needs:
+      - build-pg
+    steps:
+      - name: Markdown
+        run: |
+          commitFestID=${{ github.event.inputs.commitfest_id }}
+          commitFestPatchID=${{ github.event.inputs.patch_id }}
+          commitFestURL="https://commitfest.postgresql.org/${commitFestID}/${commitFestPatchID}"
+          image="${{ env.REGISTRY }}:${{ needs.build-pg.outputs.tag }}
+          imageURL="https://${image}"
+          echo "# Commit Fest Patch" >> $GITHUB_STEP_SUMMARY
+          echo "[$commitFestID / $commitFestPatchID]($commitFestURL)" >> $GITHUB_STEP_SUMMARY
+          echo "# Container Image" >> $GITHUB_STEP_SUMMARY
+          echo "[$image]($imageURL)" >> $GITHUB_STEP_SUMMARY