Use concurrency in GitHub Actions + remove cancelling (#77)

* Use concurrency + remove cancelling

* Combined ubuntu-focal-external with ubuntu-focal-external-rocm

* Update workflow names and README

* Update ubuntu-focal name

* More tweaks to the name

* Change names in formatting workflow

[ROCm/rocprofiler-systems commit: 9b800c028b]

projects/rocprofiler-systems/.github/workflows/formatting.yml

@@ -1,5 +1,3 @@
-# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
-# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
 
 name: formatting
 
@@ -9,8 +7,12 @@ on:
   pull_request:
     branches: [ main, develop ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
-  python-formatting:
+  python:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
@@ -31,7 +33,7 @@ jobs:
       run: |
         black --diff --check .
 
-  cmake-format:
+  cmake:
     runs-on: ubuntu-20.04
 
     steps:
@@ -54,7 +56,7 @@ jobs:
           exit 1
         fi
 
-  clang-format:
+  source:
     runs-on: ubuntu-20.04
 
     steps: