Add concurrency to avoid duplicate flows

Author: cwellm

.github/workflows/format.yml

@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-22.04
@@ -23,4 +27,3 @@ jobs:
     - name: check code format
       run: |
         clang-format-15 --style=file --Werror --dry-run --verbose `find . -type d \( -name '3rdparty' \) -prune -o -regex '.*\.\(cpp\|hpp\)' -print`
-

.github/workflows/linux-build.yml

@@ -8,6 +8,11 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
+
 jobs:
   build:
     strategy:
@@ -68,4 +73,3 @@ jobs:
     - name: unit tests
       run: |
         cmake --build build --target test
-

.github/workflows/qt5.yml

@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-22.04
@@ -74,4 +78,3 @@ jobs:
           (cd examples/CalcQt; cucumber)
           wait %
         done
-

.github/workflows/run-all.yml

@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build-linux:
     runs-on: ubuntu-22.04

.github/workflows/windows-build.yml

@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     strategy: