Tests: fix concurrency so no jobs are cancelled

Ref gh-508

Author: timmywil

.github/workflows/browserstack-3.x.yml

@@ -15,7 +15,7 @@ jobs:
       NODE_VERSION: 20.x
     name: ${{ matrix.BROWSER }}
     concurrency:
-      group: ${{ matrix.BROWSER }}
+      group: ${{ matrix.BROWSER }} - ${{ github.sha }}
     timeout-minutes: 30
     strategy:
       fail-fast: false

.github/workflows/browserstack-git.yml

@@ -15,7 +15,7 @@ jobs:
       NODE_VERSION: 20.x
     name: ${{ matrix.BROWSER }}
     concurrency:
-      group: ${{ matrix.BROWSER }}
+      group: ${{ matrix.BROWSER }} - ${{ github.sha }}
     timeout-minutes: 30
     strategy:
       fail-fast: false