chore(workflows): concurrency

.github/workflows/clang-format.yml

@@ -2,6 +2,10 @@ name: clang-format
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-format-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -10,6 +14,6 @@ jobs:
       - uses: DoozyX/clang-format-lint-action@v0.16.2
         name: clang-format
         with:
-        source: '.'
-        extensions: 'hpp,h,cpp,c'
+          source: "."
+          extensions: "hpp,h,cpp,c"
           clangFormatVersion: 16

.github/workflows/clang-tidy.yml

@@ -2,6 +2,10 @@ name: clang-tidy
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-tidy-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest

.github/workflows/freebsd.yml

@@ -2,6 +2,10 @@ name: freebsd
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-freebsd-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   clang:
     # Run actions in a FreeBSD VM on the macos-12 runner

.github/workflows/linux.yml

@@ -2,6 +2,10 @@ name: linux
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-linux-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     strategy: