add more initial findings

Author: derrickaw

.github/workflows/beam_PostCommit_Java_Delta_IO_Dataflow.yml

@@ -64,6 +64,8 @@ jobs:
         job_phrase: ["Run PostCommit Java Delta IO Dataflow"]
     steps:
       - uses: actions/checkout@v7
+        with:
+          persist-credentials: false
       - name: Setup repository
         uses: ./.github/actions/setup-action
         with:

.github/workflows/republish_released_docker_containers.yml

@@ -100,7 +100,7 @@ jobs:
           -Pdocker-pull-licenses \
           -Pprune-images ${{ matrix.images_to_publish.include_skip_flags }} \
           -Pdocker-repository-root=gcr.io/apache-beam-testing/updated_released_container_images \
-          -Pdocker-tag-list=${{ env.release }},${{ github.sha }},$(date +'%Y-%m-%d') \
+          -Pdocker-tag-list=${release},${{ github.sha }},$(date +'%Y-%m-%d') \
           -Pjava21Home=$JAVA_HOME_21_X64 \
           --no-daemon \
           --no-parallel