ci: finish in-progress checks on main

.github/workflows/ci.yml

@@ -28,9 +28,10 @@ on:
       - 'Cargo.lock'
       - '.github/workflows/**'
 
+# main runs finish; any other ref cancels the older run of this workflow.
 concurrency:
   group: ci-gate-${{ github.ref_name }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref_name != 'main' }}
 
 # Every other workflow in the repo pins this rather than inheriting whatever the
 # repository default happens to be. This one is a pure caller today, so the four

.github/workflows/codeql.yml

@@ -9,9 +9,10 @@ on:
   schedule:
     - cron: "44 3 * * 6"
 
+# main runs finish; any other ref cancels the older run of this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref_name != 'main' }}
 
 jobs:
   analyze:

.github/workflows/cutile-rs.yml

@@ -25,9 +25,10 @@ on:
       - "pull-request/[0-9]+"
   workflow_dispatch:
 
+# main runs finish; any other ref cancels the older run of this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref_name != 'main' }}
 
 permissions:
   contents: read

.github/workflows/docs.yml

@@ -26,9 +26,10 @@ on:
       - 'Cargo.lock'
       - '.github/workflows/**'
 
+# main runs finish; any other ref cancels the older run of this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref_name != 'main' }}
 
 permissions:
   contents: read

.github/workflows/examples-compile.yml

@@ -26,9 +26,10 @@ on:
       - 'Cargo.lock'
       - '.github/workflows/**'
 
+# main runs finish; any other ref cancels the older run of this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref_name != 'main' }}
 
 permissions:
   contents: read

.github/workflows/naming-guard.yml

@@ -7,9 +7,10 @@ on:
   pull_request:
     branches: [main]
 
+# main runs finish; any other ref cancels the older run of this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref_name != 'main' }}
 
 permissions:
   contents: read

.github/workflows/status-guard.yml

@@ -7,9 +7,10 @@ on:
   pull_request:
     branches: [main]
 
+# main runs finish; any other ref cancels the older run of this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref_name != 'main' }}
 
 permissions:
   contents: read