Ensure github actions run on merge to main branch (#1207)

Remove missed debug line from unit test workflow.

.github/workflows/docker-image.yml

@@ -3,13 +3,13 @@ name: docker-image
 on:
   push:
     branches:
-      - '**'
+      - master
     tags:
       - '*.*.*'
   pull_request:
 
 jobs:
-  main:
+  build-docker-image:
     runs-on: ubuntu-latest
     steps:
       -

.github/workflows/unit-tests.yml

@@ -9,7 +9,8 @@ name: CI
 
 on:
   push:
-    branches: [ $default-branch ]
+    branches:
+      - master
   pull_request:
 
 jobs:
@@ -68,7 +69,6 @@ jobs:
     - name: Run tests
       run: |
         bundle exec rspec --color --format documentation
-        cat ./coverage/lcov.info
       env:
         VAGRANT_VERSION: ${{ matrix.vagrant }}
     - name: Coveralls Parallel