[ci] Pre-install runtimes to fix FUSE permissions

.gitea/workflows/build-flatpak.yml

@@ -22,10 +22,14 @@ jobs:
       - name: Add Flathub
         run: flatpak --user remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
 
+      - name: Install Runtimes
+        run: |
+          flatpak --user install -y flathub org.gnome.Platform//48 org.gnome.Sdk//48
+
       - name: Build Flatpak
         run: |
           rm -rf .flatpak-builder build-dir repo _build
-          flatpak-builder --force-clean --user --install-deps-from=flathub --repo=repo build-dir build-aux/com.ranfdev.Notify.Devel.json 2>&1
+          flatpak-builder --force-clean --user --repo=repo build-dir build-aux/com.ranfdev.Notify.Devel.json 2>&1
 
       - name: Build Bundle
         run: |