Bump the minor-actions-dependencies group across 1 directory with 2 updates

Bumps the minor-actions-dependencies group with 2 updates in the / directory: [actions/publish-immutable-action](https://github.com/actions/publish-immutable-action) and [docker/build-push-action](https://github.com/docker/build-push-action).


Updates `actions/publish-immutable-action` from 0.0.3 to 0.0.4
- [Release notes](https://github.com/actions/publish-immutable-action/releases)
- [Commits](https://github.com/actions/publish-immutable-action/compare/0.0.3...v0.0.4)

Updates `docker/build-push-action` from 6.5.0 to 6.9.0
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v6.5.0...v6.9.0)

---
updated-dependencies:
- dependency-name: actions/publish-immutable-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: minor-actions-dependencies
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor-actions-dependencies
...

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

README.md

@@ -143,7 +143,6 @@ Please refer to the [release page](https://github.com/actions/checkout/releases/
 - [Checkout pull request HEAD commit instead of merge commit](#Checkout-pull-request-HEAD-commit-instead-of-merge-commit)
 - [Checkout pull request on closed event](#Checkout-pull-request-on-closed-event)
 - [Push a commit using the built-in token](#Push-a-commit-using-the-built-in-token)
-- [Push a commit to a PR using the built-in token](#Push-a-commit-to-a-PR-using-the-built-in-token)
 
 ## Fetch only the root files
 
@@ -289,31 +288,6 @@ jobs:
 ```
 *NOTE:* The user email is `{user.id}+{user.login}@users.noreply.github.com`. See users API: https://api.github.com/users/github-actions%5Bbot%5D
 
-## Push a commit to a PR using the built-in token
-
-In a pull request trigger, `ref` is required as GitHub Actions checks out in detached HEAD mode, meaning it doesn’t check out your branch by default.
-
-```yaml
-on: pull_request
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          ref: ${{ github.head_ref }}
-      - run: |
-          date > generated.txt
-          # Note: the following account information will not work on GHES
-          git config user.name "github-actions[bot]"
-          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git add .
-          git commit -m "generated"
-          git push
-```
-*NOTE:* The user email is `{user.id}+{user.login}@users.noreply.github.com`. See users API: https://api.github.com/users/github-actions%5Bbot%5D
-
-
 # License
 
 The scripts and documentation in this project are released under the [MIT License](LICENSE)