ci: remove concurrency rules

Signed-off-by: Nathan Weinberg <nweinber@redhat.com>

Author: nathan-weinberg

.github/workflows/pre-commit.yml

@@ -5,10 +5,6 @@ on:
   push:
     branches: [main]
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
 jobs:
   pre-commit:
     runs-on: ubuntu-latest

.github/workflows/semantic-pr.yml

@@ -8,10 +8,6 @@ on:
       - reopened
       - synchronize
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
-  cancel-in-progress: true
-
 permissions:
   contents: read