Bump cbrgm/mastodon-github-action from 2.0.2 to 2.0.3

Bumps [cbrgm/mastodon-github-action](https://github.com/cbrgm/mastodon-github-action) from 2.0.2 to 2.0.3.
- [Release notes](https://github.com/cbrgm/mastodon-github-action/releases)
- [Commits](cbrgm/mastodon-github-action@eb0fa2c...c270dd8)

---
updated-dependencies:
- dependency-name: cbrgm/mastodon-github-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/publish-mastodon.yml

@@ -79,7 +79,7 @@ jobs:
 
       - name: Send toot to Mastodon
         if: ${{ github.event.inputs.dry-run != 'true' }} || ${{ github.event_name == 'release' }}
-        uses: cbrgm/mastodon-github-action@eb0fa2c755679b459015a898dada174b5ddbff7c # v2.0.2
+        uses: cbrgm/mastodon-github-action@c270dd8335f7dee5939e572591fad4dd74e38072 # v2.0.3
         with:
           url: ${{ secrets.MASTODON_URL }}
           access-token: ${{ secrets.MASTODON_ACCESS_TOKEN }}