chore(deps): bump actions/upload-artifact from 4 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/publish-firmware.yml

@@ -135,7 +135,7 @@ jobs:
               ]
             }' > "$ver_dir/manifest.json"
       - name: Upload artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           # Artifact name determines the final uploaded manifest name in upload-to-gh-release.
           name: ${{ matrix.device }}

.github/workflows/sync-yaml-to-wiki.yml

@@ -291,7 +291,7 @@ jobs:
           fi
 
       - name: Upload changes as artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: sync-changes
           path: changes.json