feat: Add concurrency settings to lint and test workflows

Author: rshelekhov

.github/workflows/lint.yml

@@ -6,6 +6,10 @@ on:
   push:
     branches: [dev, main]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   lint:
     name: Lint & Type Check

.github/workflows/test.yml

@@ -6,6 +6,10 @@ on:
   push:
     branches: [dev, main]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   # Unit tests - fast feedback
   unit-tests: