ci: add step to free up storage on runner

Author: CompeyDev

.github/workflows/ci.yml

@@ -35,6 +35,15 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+
+      - name: Free disk space
+        uses: easimon/maximize-build-space@v10
+        with:
+          temp-reserve-mb: 512
+          swap-size-mb: 2048
+          remove-dotnet: true
+          remove-android: true
+          remove-haskell: true
 
       - name: Install nix
         uses: nixbuild/nix-quick-install-action@v33