chore(deps): bump ASzc/change-string-case-action from 2 to 6

Bumps [ASzc/change-string-case-action](https://github.com/aszc/change-string-case-action) from 2 to 6.
- [Release notes](https://github.com/aszc/change-string-case-action/releases)
- [Commits](https://github.com/aszc/change-string-case-action/compare/v2...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] <support@github.com>

.github/workflows/docker.yml

@@ -28,7 +28,7 @@ jobs:
 
       - name: Get lowercase string for the repository name
         id: lowercase-repo-name
-        uses: ASzc/change-string-case-action@v2
+        uses: ASzc/change-string-case-action@v6
         with:
           string: ${{ github.event.repository.name }}
 
@@ -66,7 +66,7 @@ jobs:
       - name: Build and export
         id: build
         if: github.ref == 'refs/heads/master'
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v3
         with:
           push: true
           platforms: linux/${{ matrix.arch }}
@@ -89,7 +89,7 @@ jobs:
       - name: Build release and export
         id: build_rel
         if: startsWith(github.ref, 'refs/tags/')
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v3
         with:
           push: true
           platforms: linux/${{ matrix.arch }}
@@ -121,7 +121,7 @@ jobs:
     steps:
       - name: Get lowercase string for the repository name
         id: lowercase-repo-name
-        uses: ASzc/change-string-case-action@v2
+        uses: ASzc/change-string-case-action@v6
         with:
           string: ${{ github.event.repository.name }}