Added config to setup safe-directory (#2)

Need to avoid this error:

fatal: detected dubious ownership in repository at '/github/workspace'

Author: scoheb

.github/workflows/ci.yaml

@@ -15,6 +15,9 @@ jobs:
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
 
+    - name: Fix git safe.directory in container
+      run: mkdir -p /home/runner/work/_temp/_github_home && printf "[safe]\n\tdirectory = /github/workspace" > /home/runner/work/_temp/_github_home/.gitconfig
+      
     - name: Build Catalog
       run: make catalog