Bump k-paxian/dart-package-publisher from 1.5.1 to 1.6 (#24)

Bumps [k-paxian/dart-package-publisher](https://github.com/k-paxian/dart-package-publisher) from 1.5.1 to 1.6.
- [Release notes](https://github.com/k-paxian/dart-package-publisher/releases)
- [Commits](k-paxian/dart-package-publisher@v1.5.1...v1.6)

---
updated-dependencies:
- dependency-name: k-paxian/dart-package-publisher
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/publish.yaml

@@ -29,7 +29,7 @@ jobs:
       - name: Check Publish Warnings
         run: dart pub publish --dry-run
       - name: Publish
-        uses: k-paxian/dart-package-publisher@v1.5.1
+        uses: k-paxian/dart-package-publisher@v1.6
         with:
           credentialJson: ${{ secrets.CREDENTIAL_JSON }}
           skipTests: true