ci: bump actions/upload-artifact from 6.0.0 to 7.0.0 (#2687)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 6.0.0 to 7.0.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v6.0.0...v7.0.0)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: 7.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/main.yml

@@ -86,7 +86,7 @@ jobs:
         run: |
           ./gradlew :jme3-screenshot-test:screenshotTest
       - name: Upload Test Reports
-        uses: actions/upload-artifact@v6.0.0
+        uses: actions/upload-artifact@v7.0.0
         if: always()
         with:
           name: screenshot-test-report
@@ -130,7 +130,7 @@ jobs:
           :jme3-ios-native:build
 
       - name: Upload natives
-        uses: actions/upload-artifact@v6.0.0
+        uses: actions/upload-artifact@v7.0.0
         with:
           name: ios-natives
           path: jme3-ios-native/template/META-INF/robovm/ios/libs/jme3-ios-native.xcframework
@@ -173,7 +173,7 @@ jobs:
           :jme3-android-native:assemble
 
       - name: Upload natives
-        uses: actions/upload-artifact@v6.0.0
+        uses: actions/upload-artifact@v7.0.0
         with:
           name: android-natives
           path: build/native
@@ -275,30 +275,30 @@ jobs:
       # Used later by DeploySnapshot
       - name: Upload merged natives
         if: matrix.deploy==true
-        uses: actions/upload-artifact@v6.0.0
+        uses: actions/upload-artifact@v7.0.0
         with:
           name: natives
           path: dist/jme3-natives.zip
 
       # Upload maven artifacts to be used later by the deploy job
       - name: Upload maven artifacts
         if: matrix.deploy==true
-        uses: actions/upload-artifact@v6.0.0
+        uses: actions/upload-artifact@v7.0.0
         with:
           name: maven
           path: dist/maven
 
       - name: Upload javadoc
         if:  matrix.deploy==true
-        uses: actions/upload-artifact@v6.0.0
+        uses: actions/upload-artifact@v7.0.0
         with:
           name: javadoc
           path: dist/javadoc
 
       # Upload release archive to be used later by the deploy job
       - name: Upload release
         if: github.event_name == 'release' && matrix.deploy==true
-        uses: actions/upload-artifact@v6.0.0
+        uses: actions/upload-artifact@v7.0.0
         with:
           name: release
           path: dist/release