build(deps): bump actions/upload-artifact from 4 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v4...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/docker-build-static.yml

@@ -114,7 +114,7 @@ jobs:
       - name: Check build path
         run: ls -al app/
       - name: Upload ui artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ui
           path: app/
@@ -159,17 +159,17 @@ jobs:
       - name: Check path
         run: ls -al target/release
       - name: Upload ${{ matrix.target}} lldap artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ matrix.target}}-lldap-bin
           path: target/${{ matrix.target }}/release/lldap
       - name: Upload ${{ matrix.target }} migration tool artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ matrix.target }}-lldap_migration_tool-bin
           path: target/${{ matrix.target }}/release/lldap_migration_tool
       - name: Upload ${{ matrix.target }} password tool artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ matrix.target }}-lldap_set_password-bin
           path: target/${{ matrix.target }}/release/lldap_set_password