CI: only run all tests on linux

Author: Vexu

.github/workflows/ci.yml

@@ -36,5 +36,10 @@ jobs:
       - name: Build release
         run: zig build --release=safe
 
+      - name: Run Tests
+        run: zig build test
+        if: matrix.os == 'ubuntu-latest'
+
       - name: Run Tests
         run: zig build test-fmt test-unit test-macros test-translate
+        if: matrix.os != 'ubuntu-latest'