Cancel outdated CI runs

.github/workflows/backward-compatibility-check.yml

@@ -5,6 +5,10 @@ name: "Backward Compatibility Check"
 on:
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow_ref }}
+  cancel-in-progress: true
+
 jobs:
   roave-backwards-compatibility-check:
     name: "Backward Compatibility Check"

.github/workflows/coding-standard.yml

@@ -9,6 +9,10 @@ on:
             - "[0-9]+.[0-9]+.x"
             - "renovate/*"
 
+concurrency:
+    group: ${{ github.workflow_ref }}
+    cancel-in-progress: true
+
 jobs:
     static-analysis-coding-standard:
         name: "Static Analysis by patchlevel/coding-standard"

.github/workflows/docs-check.yml

@@ -8,6 +8,10 @@ on:
         branches:
             - "[0-9]+.[0-9]+.x"
 
+concurrency:
+    group: ${{ github.workflow_ref }}
+    cancel-in-progress: true
+
 jobs:
     checkdocs:
         name: "Check Docs"

.github/workflows/mutation-tests-diff.yml

@@ -5,6 +5,10 @@ name: "Mutation tests on diff"
 on:
     pull_request:
 
+concurrency:
+    group: ${{ github.workflow_ref }}
+    cancel-in-progress: true
+
 jobs:
     mutation-tests-diff:
         name: "Mutation tests on diff"

.github/workflows/mutation-tests.yml

@@ -9,6 +9,10 @@ on:
             - "[0-9]+.[0-9]+.x"
             - "renovate/*"
 
+concurrency:
+    group: ${{ github.workflow_ref }}
+    cancel-in-progress: true
+
 jobs:
     mutation-tests:
         name: "Mutation tests"

.github/workflows/phpstan.yml

@@ -9,6 +9,10 @@ on:
             - "[0-9]+.[0-9]+.x"
             - "renovate/*"
 
+concurrency:
+    group: ${{ github.workflow_ref }}
+    cancel-in-progress: true
+
 jobs:
     static-analysis-phpstan:
         name: "Static Analysis by PHPStan"

.github/workflows/unit.yml

@@ -9,6 +9,10 @@ on:
             - "[0-9]+.[0-9]+.x"
             - "renovate/*"
 
+concurrency:
+    group: ${{ github.workflow_ref }}
+    cancel-in-progress: true
+
 jobs:
     phpunit:
         name: "Unit tests"