Explicitly use non-ARM64 macOS runner

As of recently, `macos-latest` runner switched to macOS-14-arm64 host, and Coverity (at least currently available image) only works on Intel/x86_64-based systems.
`macos-latest-large` macOS runner is Intel-based, as per documentation.

Author: Youw

.github/workflows/checks.yml

@@ -71,7 +71,7 @@ jobs:
 
 
   coverity-macos:
-    runs-on: macos-latest
+    runs-on: macos-latest-large
     needs: [coverity-windows]
 
     steps: