Don't cancel full CI runs on main

Since CI on PRs only runs depending on changed files, I think it's good
to have an after-merge full CI for every PR.

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ on:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 
 jobs:
   ci:

.github/workflows/codeql-analysis.yml

@@ -25,7 +25,7 @@ on:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 
 jobs:
   analyze:

.github/workflows/dependency-review.yml

@@ -6,7 +6,7 @@ permissions:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 
 jobs:
   dependency-review:

.github/workflows/smoke.yml

@@ -12,7 +12,7 @@ on:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 
 env:
   GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}