build(deps): bump actions/upload-artifact from 5 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v5...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/ci.yml

@@ -64,7 +64,7 @@ jobs:
         make
         tar -cvf /tmp/compiled.tar .
 
-    - uses: actions/upload-artifact@v5
+    - uses: actions/upload-artifact@v6
       with:
         name: compiled-${{ matrix.otp }}
         path: /tmp/compiled.tar
@@ -282,7 +282,7 @@ jobs:
 
     - name: Upload CT logs
       if: failure()
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: ct-logs-${{ matrix.otp }}-${{ matrix.backend }}-${{ matrix.schema }}
         path: _build/test/logs

.github/workflows/installers.yml

@@ -80,7 +80,7 @@ jobs:
           mkdir ejabberd-packages
           mv ejabberd_*.deb ejabberd-*.rpm ejabberd-*.run ejabberd-packages
       - name: Upload packages
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: ejabberd-packages-${{ matrix.platform }}
           #

.github/workflows/weekly.yml

@@ -158,7 +158,7 @@ jobs:
 
     - name: Upload CT logs
       if: failure()
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: ct-logs-${{ matrix.otp }}
         path: _build/test/logs