Revert "Enable "vz" vm-type for MacOS CI (#2586)" (#2588)

This reverts commit 57b56c0536.

.github/workflows/run-unit-tests.yml

@@ -21,7 +21,7 @@ env:
 jobs:
   test-on-macos:
     name: Test on macOS
-    runs-on: macos-13
+    runs-on: macos-12
     env:
       INSTALL_DOCKER: "1" # Set to '0' to skip Docker installation
     strategy:
@@ -49,13 +49,13 @@ jobs:
           # Uninstall colima to upgrade to the latest version
           if brew list colima &>/dev/null; then
               brew uninstall colima
-              # uninstall colima dependency: go
+              # unlinking colima dependency: go
               brew uninstall go@1.21
           fi
           brew install --HEAD colima
           brew services start colima
           brew install docker
-          colima start  --network-address --arch x86_64 --vm-type=vz
+          colima start  --network-address --arch x86_64
 
           # For testcontainers to find the Colima socket
           # https://github.com/abiosoft/colima/blob/main/docs/FAQ.md#cannot-connect-to-the-docker-daemon-at-unixvarrundockersock-is-the-docker-daemon-running