Bump ASzc/change-string-case-action from 5 to 6

Bumps [ASzc/change-string-case-action](https://github.com/aszc/change-string-case-action) from 5 to 6.
- [Release notes](https://github.com/aszc/change-string-case-action/releases)
- [Commits](ASzc/change-string-case-action@v5...v6)

---
updated-dependencies:
- dependency-name: ASzc/change-string-case-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/main.yml

@@ -78,7 +78,7 @@ jobs:
 
  - name: Create image name
  id: github-image
- uses: ASzc/change-string-case-action@v5
+ uses: ASzc/change-string-case-action@v6
  with:
  string: ${{ env.REGISTRY }}/${{ env.GITHUB_IMAGE_NAME }}