ci: skip xcode tests for freetype build

.github/workflows/test.yml

@@ -696,9 +696,11 @@ jobs:
         id: deps
         run: nix build -L .#deps && echo "deps=$(readlink ./result)" >> $GITHUB_OUTPUT
 
+      # We run tests with an empty test filter so it runs all unit tests
+      # but skips Xcode tests
       - name: Test All
         run: |
-          nix develop -c zig build test --system ${{ steps.deps.outputs.deps }} -Drenderer=metal -Dfont-backend=coretext_freetype
+          nix develop -c zig build test --system ${{ steps.deps.outputs.deps }} -Drenderer=metal -Dfont-backend=coretext_freetype -Dtest-filter=""
 
       - name: Build All
         run: |