chore(deps): update actions/upload-artifact action to v4 (#147)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yml

@@ -52,7 +52,7 @@ jobs:
         run: ./gradlew buildPlugin
 
       - name: Upload JAR
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: "Catppuccin Theme-Snapshot.jar"
           path: build/libs/*.jar

.github/workflows/publish.yml

@@ -58,7 +58,7 @@ jobs:
         run: ./gradlew buildPlugin
 
       - name: Upload JAR
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ env.name }}-${{ env.version }}.jar
           path: build/libs/*.jar