Move mmctl CI tests to free tier (#24899)

Only the -race tests in master branch takes
more memory. So it will take more time, but there's no
need to optimize run time in master as nobody
is waiting for it to complete.

```release-note
NONE
```

.github/workflows/mmctl-test-template.yml

@@ -19,7 +19,7 @@ env:
 jobs:
   test:
     name: ${{ inputs.name }}
-    runs-on: ubuntu-latest-8-cores
+    runs-on: ubuntu-22.04
     env:
       COMPOSE_PROJECT_NAME: ghactions
       BUILD_IMAGE: mattermost/mattermost-build-server:20230904_golang-1.20.7
@@ -49,7 +49,7 @@ jobs:
       - name: Run mmctl Tests
         run: |
           if [[ ${{ github.ref_name }} == 'master' ]]; then
-            export TESTFLAGS="-timeout 30m -race"
+            export TESTFLAGS="-timeout 90m -race"
           else
             export TESTFLAGS="-timeout 30m"
           fi