Throttle GitHub Actions [ci skip]

As GitHub Actions are choking a lot lately, throttle the checks
down to the latest commit only per branches.

.github/workflows/baseruby.yml

@@ -12,6 +12,10 @@ on:
       - '**.md'
       - '**.rdoc'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 jobs:
   baseruby:
     name: BASERUBY

.github/workflows/check_dependencies.yml

@@ -11,6 +11,10 @@ on:
       - '**.md'
       - '**.rdoc'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 jobs:
   update-deps:
     strategy:

.github/workflows/check_misc.yml

@@ -1,6 +1,10 @@
 name: Miscellaneous checks
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 jobs:
   checks:
     runs-on: ubuntu-latest

.github/workflows/codeql-analysis.yml

@@ -14,6 +14,10 @@ on:
   schedule:
     - cron: '0 12 * * 4'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 jobs:
   CodeQL-Build:
 

.github/workflows/compilers.yml

@@ -12,6 +12,10 @@ on:
       - '**.md'
       - '**.rdoc'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 # Github actions does not support YAML anchors.  This creative use of
 # environment variables (plus the "echo $GITHUB_ENV" hack) is to reroute that
 # restriction.

.github/workflows/mingw.yml

@@ -11,6 +11,10 @@ on:
       - '**.md'
       - '**.rdoc'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 # Notes:
 # Actions console encoding causes issues, see test-all & test-spec steps
 #

.github/workflows/mjit.yml

@@ -11,6 +11,10 @@ on:
       - '**.md'
       - '**.rdoc'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 jobs:
   make:
     strategy:

.github/workflows/spec_guards.yml

@@ -12,6 +12,10 @@ on:
       - '**.md'
       - '**.rdoc'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 jobs:
   rubyspec:
     name: Rubyspec

.github/workflows/ubuntu.yml

@@ -11,6 +11,10 @@ on:
       - '**.md'
       - '**.rdoc'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 jobs:
   make:
     strategy:

.github/workflows/windows.yml

@@ -11,6 +11,10 @@ on:
       - '**.md'
       - '**.rdoc'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 jobs:
   make:
     strategy:

.github/workflows/yjit-ubuntu.yml

@@ -11,6 +11,10 @@ on:
       - '**.md'
       - '**.rdoc'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 jobs:
   make:
     strategy:

.github/workflows/yjit_asm_tests.yml

@@ -12,6 +12,10 @@ on:
       - '**.md'
       - '**.rdoc'
 
+concurrency:
+  group: ${{ github.workflow }} / ${{ github.ref_name }}
+  cancel-in-progress: true
+
 jobs:
   test:
     runs-on: ubuntu-latest