Remove heroku-20 integration test (EOL)

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

Author: ipmb

.github/workflows/build.yml

@@ -218,66 +218,6 @@ jobs:
           cat apppack.toml
           test "$(python -c 'import tomllib; print(tomllib.load(open("apppack.toml", "rb"))["services"]["web"]["command"])')" = "bash -c 'gunicorn --access-logfile - --bind 0.0.0.0:\$PORT --forwarded-allow-ips '\"'\"'*'\"'\"' app:app'"
 
-  integration-heroku20:
-    runs-on: ubuntu-latest
-    needs: [test, build-image]
-    permissions:
-      id-token: write
-      contents: read
-      packages: read
-    steps:
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v2
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Pull image
-        run: docker pull ${{ needs.build-image.outputs.image }}
-      - name: configure aws credentials
-        uses: aws-actions/configure-aws-credentials@v4
-        with:
-          role-to-assume: arn:aws:iam::891426818781:role/github-actions-integration-tests
-          aws-region: us-east-1
-      - name: Checkout sample repo
-        run: git clone --branch buildpacks-20 https://github.com/apppackio/apppack-demo-python.git
-      - name: Run integration tests
-        working-directory: ./apppack-demo-python
-        run: |
-          cat <<EOF > .envfile
-          APPNAME=gh-integration
-          CODEBUILD_BUILD_ID=demo-python:${{ github.run_id }}
-          CODEBUILD_SOURCE_VERSION=${{ github.sha }}
-          DOCKERHUB_USERNAME=${{ secrets.DOCKERHUB_USERNAME }}
-          DOCKERHUB_ACCESS_TOKEN=${{ secrets.DOCKERHUB_ACCESS_TOKEN }}
-          DOCKER_REPO=891426818781.dkr.ecr.us-east-1.amazonaws.com/github-integration-test
-          ARTIFACT_BUCKET=integration-test-buildartifacts
-          ALLOW_EOL_SHIMMED_BUILDER=1
-          AWS_REGION
-          AWS_ACCESS_KEY_ID
-          AWS_SECRET_ACCESS_KEY
-          AWS_SESSION_TOKEN
-          EOF
-
-          docker run \
-            --rm \
-            --privileged \
-            --env-file .envfile \
-            --volume /var/run/docker.sock:/var/run/docker.sock \
-            --volume "$(pwd):/app" \
-            --workdir /app \
-            ${{ needs.build-image.outputs.image }} \
-            /bin/sh -c "set -x; git config --global --add safe.directory /app && apppack-builder prebuild; apppack-builder build; apppack-builder postbuild"
-      - uses: actions/setup-python@v4
-        with:
-          python-version: "3.11"
-      - name: Verify apppack.toml
-        working-directory: ./apppack-demo-python
-        run: |
-          set -ex
-          cat apppack.toml
-          test "$(python -c 'import tomllib; print(tomllib.load(open("apppack.toml", "rb"))["services"]["web"]["command"])')" = 'gunicorn --access-logfile - --bind 0.0.0.0:$PORT --forwarded-allow-ips '"'"'*'"' app:app"
-
   integration-docker:
     runs-on: ubuntu-latest
     needs: [test, build-image]
@@ -346,7 +286,6 @@ jobs:
       - integration
       - integration-docker
       - integration-appjson
-      - integration-heroku20
       - integration-heroku24
     permissions:
       id-token: write