try removing concurrency

Author: Toby Dylan Hocking

.github/workflows/R-CMD-check.yaml

@@ -8,10 +8,6 @@ on:
 
 name: R-CMD-check
 
-concurrency:
-  group: ${{ github.event.pull_request.number || github.run_id }}
-  cancel-in-progress: false
-
 jobs:
   R-CMD-check:
     runs-on: ${{ matrix.config.os }}