Rename GHA files, add codecov to master

The GHA written for execution on merges to master branch did not include
codecov - so we haven't been uploading reports, and our codecov
comparisons are out of date on PRs.

.github/workflows/update_robottelo_image.yml → .github/workflows/merge_to_master.yml

@@ -1,7 +1,11 @@
+# CI stages to execute against master branch on PR merge
 name: update_robottelo_image
 
 on: [push]
 
+env:
+    PYCURL_SSL_LIBRARY: openssl
+
 jobs:
   codechecks:
     name: Code Quality
@@ -10,7 +14,6 @@ jobs:
       matrix:
         python-version: [3.8, 3.9]
     env:
-      PYCURL_SSL_LIBRARY: openssl
       SATELLITE_VERSION: 6.9
     steps:
       - name: Checkout Robottelo
@@ -54,6 +57,13 @@ jobs:
         if: failure()
         run: git diff
 
+      - name: Upload Codecov Coverage
+        uses: codecov/[email protected]
+        with:
+          file: coverage.xml
+          name: ${{ github.run_id }}-py-${{ matrix.python-version }}
+
+
   robottelo_container:
     needs: codechecks
     name: Update Robottelo container image on Quay.

.github/workflows/action.yml → .github/workflows/pull_request.yml

@@ -1,3 +1,4 @@
+# CI stages to execute against Pull Requests
 name: Robottelo - CI
 
 on: