[CI] Add GHA to deploy stream apps to central (take 4)

Signed-off-by: Chris Bono <chris.bono@broadcom.com>

Author: onobc

.github/workflows/stream-apps-release-maven-central.yml

@@ -38,7 +38,8 @@ jobs:
           jfrog rt download \
           --spec ".github/stream-apps-release-files-spec.json" \
           --spec-vars "buildname=${{ inputs.buildName }};buildnumber=${{ inputs.buildNumber }}"
-      - id: get-artifact-dirs
+      - name: Get artifacts dirs to upload
+        id: get-artifact-dirs
         run: |
           pushd central_bundle/org/springframework/cloud/stream/app > /dev/null
           DIRS=$(find * -maxdepth 0 -type d)
@@ -49,11 +50,11 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        dir: ${{ fromJson(needs.download-all-release-artifacts.outputs.dirs) }}
+        app-dir: ${{ fromJson(needs.download-all-release-artifacts.outputs.dirs) }}
     steps:
-      - name: Deploy ${{ matrix.dir }} to Maven Central
+      - name: Deploy ${{ matrix.app-dir }} to Maven Central
         uses: spring-io/central-publish-action@v0.3.0
         with:
           token-name: ${{ secrets.CENTRAL_TOKEN_USERNAME }}
           token: ${{ secrets.CENTRAL_TOKEN_PASSWORD }}
-          dir: ${{ matrix.dir }}
+          dir: ${{ matrix.app-dir }}