Minor reorganisation

Author: saxbophone

.github/workflows/build-release.yml

@@ -15,16 +15,16 @@ jobs:
       matrix:
         # specify a specific compiler to build with each OS separately
         include:
-          - os: macos-10.15
-            cxx: clang++
-            nickname: macos
-          - os: ubuntu-20.04
+          - platform_name: linux
+            os: ubuntu-20.04
             cxx: g++-10
-            nickname: linux
+          - platform_name: macos
+            os: macos-10.15
+            cxx: clang++
           # NOTE: CXX seems to be ignored on Windows, but specify it anyway for consistency
-          - os: windows-2019
+          - platform_name: windows
+            os: windows-2019
             cxx: msvc
-            nickname: windows
 
     steps:
       - uses: actions/checkout@v2
@@ -56,5 +56,5 @@ jobs:
       - name: Upload
         uses: actions/upload-artifact@v2
         with:
-          name: build_${{ github.sha }}_${{ matrix.nickname }}
+          name: build_${{ github.run_number }}_${{ matrix.platform_name }}
           path: ${{github.workspace}}/artifacts