CI/Release: enforce concurrency=1 and cancel superseded runs

Author: crisdosaygo

.github/workflows/ci.yml

@@ -5,6 +5,10 @@ on:
     branches: [main]
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   CARGO_TERM_COLOR: always
 

.github/workflows/release.yml

@@ -10,7 +10,7 @@ on:
         required: true
 
 concurrency:
-  group: release-${{ github.ref_name || inputs.tag }}
+  group: ${{ github.workflow }}-${{ github.ref_name || inputs.tag }}
   cancel-in-progress: true
 
 permissions: