Minor clean up in GH Actions (#495)

Author: solidpixel

.github/workflows/post_weekly_release.yaml

@@ -205,7 +205,7 @@ jobs:
 
   sign-binaries:
     if: github.repository_owner == 'Arm-software'
-    name: Sign Windows and Mac
+    name: Sign Windows and macOS
     runs-on: [self-hosted-ubuntu-latest-x64]
     needs: [build-macos-universal, build-windows-multi]
     steps: