Give the CI job a useful name

Existing names overflow the display area on github, and have useless and unlabeled information in them

Author: dabrahams

.github/workflows/ci.yml

@@ -16,6 +16,7 @@ env:
 
 jobs:
   Test:
+    name: ${{matrix.os}} ${{matrix.compiler}} ${{matrix.build_type}} ${{matrix.packaging_maintainer_mode == 'ON' && '(maintainer mode)' || ''}}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false