Bump docker/build-push-action from 2.8.0 to 2.9.0 (open-telemetry#685)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 2.8.0 to 2.9.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v2.8.0...v2.9.0)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/publish-autoinstrumentation-java.yaml

@@ -39,7 +39,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@v2.8.0
+        uses: docker/build-push-action@v2.9.0
         with:
           context: autoinstrumentation/java
           push: ${{ github.event_name == 'push' }}

.github/workflows/publish-autoinstrumentation-nodejs.yaml

@@ -39,7 +39,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@v2.8.0
+        uses: docker/build-push-action@v2.9.0
         with:
           context: autoinstrumentation/nodejs
           push: ${{ github.event_name == 'push' }}

.github/workflows/publish-autoinstrumentation-python.yaml

@@ -39,7 +39,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@v2.8.0
+        uses: docker/build-push-action@v2.9.0
         with:
           context: autoinstrumentation/python
           push: ${{ github.event_name == 'push' }}

.github/workflows/publish-images.yaml

@@ -63,7 +63,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push Operator image
-        uses: docker/build-push-action@v2.8.0
+        uses: docker/build-push-action@v2.9.0
         with:
           context: .
           file: ./Dockerfile

.github/workflows/publish-target-allocator.yaml

@@ -35,7 +35,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@v2.8.0
+        uses: docker/build-push-action@v2.9.0
         with:
           context: cmd/otel-allocator
           push: true