Update GitHub Actions to Trigger on PR Merge or Direct Push.

- Add triggers for PR opened, synchronized, and closed events.
- Modify conditional logic for Docker Hub login and push steps to run only when
  a PR is merged or a direct push occurs.
- Introduce a shell-command-based Docker Hub login step.
- This step is conditional and will only execute if a PR is merged or there is
  a direct push to the branch.

Signed-off-by: Nikolay Martyanov <[email protected]>

.github/workflows/publish.yml

@@ -1,34 +1,39 @@
----
 name: eve-kernel build
-on:  # yamllint disable-line rule:truthy
+on:
   pull_request_review:
     types: [submitted]
+  pull_request:
+    types: [opened, synchronize, closed]
   push:
     branches:
       - "eve-kernel-amd64-v6.1.38-generic"
-
+  workflow_dispatch:
 concurrency:
-  group: ${{ github.workflow }}
+  group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
-
 jobs:
   packages:
     runs-on: self-hosted
-    if: github.event.review.state == 'approved'
     steps:
       - name: Get eve-kernel
         uses: actions/checkout@v3
         with:
           ref: "eve-kernel-amd64-v6.1.38-generic"
+      - name: Always build eve-kernel-amd64
+        run: |
+          make -f Makefile.eve BRANCH?=${GITHUB_REF##*/} kernel-gcc
       - name: Log in to Docker Hub
+        if: ( github.event_name == 'pull_request' && github.event.pull_request.merged == true ) || github.event_name == 'push'  # Only if PR is merged or it was direct push
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.RELEASE_DOCKERHUB_ACCOUNT }}
           password: ${{ secrets.RELEASE_DOCKERHUB_TOKEN }}
       - name: Login to DockerHUB
+        if: ( github.event_name == 'pull_request' && github.event.pull_request.merged == true ) || github.event_name == 'push'  # Only if PR is merged or it was direct push
         run: |
           echo "${{ secrets.RELEASE_DOCKERHUB_TOKEN }}" |\
              docker login -u "${{ secrets.RELEASE_DOCKERHUB_ACCOUNT }}" --password-stdin
-      - name: Build eve-kernel-amd64-v6.1.38-generic
+      - name: Push eve-kernel-amd64-v6.1.38-generic if PR approved or pushed
+        if: ( github.event_name == 'pull_request' && github.event.pull_request.merged == true ) || github.event_name == 'push'  # Only if PR is merged or it was direct push
         run: |
           make -f Makefile.eve BRANCH?=${GITHUB_REF##*/} push-gcc