try removing concurrency limit

Author: bsurmanski

.github/workflows/build_core.yml

@@ -4,10 +4,6 @@ on:
     workflow_dispatch:
     workflow_call:
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
-  cancel-in-progress: true
-
 jobs:
   build-and-test:
     runs-on: ubuntu-latest