Only run CI on latest commit of PR branches (#1033)

Author: carloskiki

.github/workflows/dsa.yml

@@ -15,6 +15,11 @@ env:
   CARGO_INCREMENTAL: 0
   RUSTFLAGS: "-Dwarnings"
 
+# Cancels CI jobs when new commits are pushed to a PR branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest

.github/workflows/ecdsa.yml

@@ -17,6 +17,11 @@ env:
   CARGO_INCREMENTAL: 0
   RUSTFLAGS: "-Dwarnings"
 
+# Cancels CI jobs when new commits are pushed to a PR branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   no_std:
     runs-on: ubuntu-latest

.github/workflows/ed25519.yml

@@ -15,6 +15,11 @@ env:
   CARGO_INCREMENTAL: 0
   RUSTFLAGS: "-Dwarnings"
 
+# Cancels CI jobs when new commits are pushed to a PR branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest

.github/workflows/ed448.yml

@@ -15,6 +15,11 @@ env:
   CARGO_INCREMENTAL: 0
   RUSTFLAGS: "-Dwarnings"
 
+# Cancels CI jobs when new commits are pushed to a PR branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest

.github/workflows/lms.yml

@@ -16,6 +16,11 @@ env:
   CARGO_INCREMENTAL: 0
   RUSTFLAGS: "-Dwarnings"
 
+# Cancels CI jobs when new commits are pushed to a PR branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   test:
     runs-on: ubuntu-latest

.github/workflows/ml-dsa.yml

@@ -17,6 +17,11 @@ env:
   RUSTFLAGS: "-Dwarnings"
   RUST_MIN_STACK: 6291456
 
+# Cancels CI jobs when new commits are pushed to a PR branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   test:
     runs-on: ubuntu-latest

.github/workflows/rfc6979.yml

@@ -15,6 +15,11 @@ env:
   CARGO_INCREMENTAL: 0
   RUSTFLAGS: "-Dwarnings"
 
+# Cancels CI jobs when new commits are pushed to a PR branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest

.github/workflows/slh-dsa.yml

@@ -18,6 +18,11 @@ env:
   CARGO_TERM_COLOR: always
   NEXTEST_NO_TESTS: warn
 
+# Cancels CI jobs when new commits are pushed to a PR branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   no_std:
     runs-on: ubuntu-latest

.github/workflows/workspace.yml

@@ -12,6 +12,11 @@ env:
   CARGO_INCREMENTAL: 0
   RUSTFLAGS: "-Dwarnings"
 
+# Cancels CI jobs when new commits are pushed to a PR branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   rustfmt:
     runs-on: ubuntu-latest