Update CI actions (#22)

* Update CI actions

* Slugify platform for appimage artifact names

Author: v1993

.github/workflows/appimage.yml

@@ -27,14 +27,14 @@ jobs:
       - uses: rlespinasse/github-slug-action@v4
 
       - name: Setup qemu for docker
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
         if: matrix.platform != 'linux/amd64'
 
       - name: Setup buildx for docker
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       - name: Compile in docker
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v5
         with:
           platforms: ${{ matrix.platform }}
           outputs: build
@@ -62,10 +62,17 @@ jobs:
         with:
           recipe: dist/AppImageBuilder.yml
 
+      - uses: rlespinasse/slugify-value@v1.x
+        id: platform-slug
+        with:
+          key: PLATFORM
+          value: ${{ matrix.platform }}
+          publish-env: false
+
       - name: Upload artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: appimages
+          name: appimage-${{steps.platform-slug.outputs.slug-url}}
           path: |
             ./*.AppImage
             ./*.AppImage.zsync
@@ -83,10 +90,11 @@ jobs:
 
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
-          name: appimages
           path: assets
+          pattern: appimage-*
+          merge-multiple: true
       - name: Create checksum for release assets
         shell: bash
         run: |