Cancel current CI actions when a PR is updated

This should help get build feedback more quickly when someone is iterating on a PR

.github/workflows/android.yml

@@ -2,6 +2,10 @@ name: Build (Android)
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   android:
     name: ${{ matrix.platform.name }}

.github/workflows/emscripten.yml

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

.github/workflows/ios.yml

@@ -2,6 +2,10 @@ name: Build (iOS/tvOS)
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   Build:
     name: ${{ matrix.platform.name }}
@@ -17,4 +21,4 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Build
-        run: xcodebuild -project Xcode/SDL/SDL.xcodeproj -target '${{ matrix.platform.target }}' -configuration Release -sdk ${{ matrix.platform.sdk }} clean build
+        run: xcodebuild -project Xcode/SDL/SDL.xcodeproj -target '${{ matrix.platform.target }}' -configuration Release -sdk ${{ matrix.platform.sdk }} clean build

.github/workflows/main.yml

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

.github/workflows/msvc.yml

@@ -2,6 +2,10 @@ name: Build (MSVC)
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   Build:
     name: ${{ matrix.platform.name }}

.github/workflows/n3ds.yml

@@ -2,6 +2,10 @@ name: Build (Nintendo 3DS)
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   n3ds:
     runs-on: ubuntu-latest

.github/workflows/ps2.yaml

@@ -2,6 +2,10 @@ name: Build (Sony Playstation 2)
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   ps2:
     runs-on: ubuntu-latest

.github/workflows/psp.yaml

@@ -2,6 +2,10 @@ name: Build (Sony Playstation Portable)
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   psp:
     runs-on: ubuntu-latest

.github/workflows/riscos.yml

@@ -2,6 +2,10 @@ name: Build (RISC OS)
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   Build:
     name: ${{ matrix.platform.name }}

.github/workflows/vita.yaml

@@ -2,6 +2,10 @@ name: Build (Sony Playstation Vita)
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 defaults:
   run:
     shell: sh

.github/workflows/vmactions.yml

@@ -2,6 +2,10 @@ name: Build (VM Actions)
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   freebsd:
     runs-on: macos-12