ci: enabling tests for PRs targeting v4

PRs that target develop-4.0 branch will now run tests in CI.

Author: JeneaVranceanu

.github/workflows/macOS-12.yml renamed to .github/workflows/macOS-tests.yml

@@ -7,6 +7,8 @@ on:
       - develop
       - hotfix
       - unstable
+      # Temporary develop-X.Y.Z branches may be added and removed from here as we release new versions
+      - develop-4.0
     paths:
       - Packag*.swift
       - web3swift.podspec
@@ -20,6 +22,8 @@ on:
       - master
       - develop
       - unstable
+      # Temporary develop-X.Y.Z branches may be added and removed from here as we release new versions
+      - develop-4.0
 
 env:
   DEVELOPER_DIR: /Applications/Xcode_14.1.app/Contents/Developer