Style script modernizations (#93)

.github/workflows/check.yml

@@ -29,11 +29,7 @@ jobs:
       run: ./setup-scripts.sh
 
     - name: Setup check
-      run: |
-        brew update
-        brew install clang-format@21
-        brew install mint
-        mint bootstrap
+      run: scripts/setup_check.sh
 
     - name: Style
       run: scripts/style.sh test-only

Mintfile

@@ -1 +1 @@
-nicklockwood/SwiftFormat@0.54.0
+nicklockwood/SwiftFormat@0.55.5