ci: Disable desktop file validation until GA supports COSMIC

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ on:
     - master
   pull_request:
 
-env: 
+env:
   CARGO_TERM_COLOR: always
 
 jobs:
@@ -16,6 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: sudo apt-get update; sudo apt-get install desktop-file-utils libclang-dev libglib2.0-dev libxkbcommon-dev
-      - run: desktop-file-validate --no-hints ./res/com.system76.CosmicFiles.desktop
+      # Disable until GitHub Actions uses Ubuntu 26.04.
+      # - run: desktop-file-validate --no-hints ./res/com.system76.CosmicFiles.desktop
       - run: rustup update stable && rustup default stable
-      - run: cargo test --verbose
+      - run: cargo test --verbose