GHA: Revert kyeserver workaround & configure dirmgr (#3738)

.github/workflows/build_mac.yml

@@ -27,16 +27,15 @@ jobs:
     - name: Install Python
       run: brew install python@3.12 --overwrite
 
+    - name: Configure dirmgr
+      run: |
+        mkdir -p ~/.gnupg/
+        touch ~/.gnupg/dirmngr.conf
+        echo "standard-resolver" >  ~/.gnupg/dirmngr.conf
+
     - name: Install Ansible
       run: brew install ansible
 
-    # This is to fix an issue with the github macos14 runner, that cant resolve keyserver.ubuntu.com
-    # but this does work when replaced with the IP address. Spotted during the GPG verification of ANT step
-    # Upstream Bug : https://github.com/actions/runner-images/issues/9777
-    - name: Replace keyserver address with IP address
-      run: |
-        sed -i '' 's/keyserver\.ubuntu\.com/185.125.188.27/g' ansible/playbooks/Supporting_Scripts/package_signature_verification.sh
-
     - name: Run Ansible Playbook
       run: |
         echo "localhost ansible_user=runner ansible_connection=local" > ansible/hosts