feat: Add basic concurrency limits to CI

Good for the planet and good for me.

Signed-off-by: hashcatHitman <155700084+hashcatHitman@users.noreply.github.com>

Author: hashcatHitman

.github/workflows/ci.yml

@@ -13,6 +13,10 @@ on:
     branches: ["**"]
   workflow_dispatch: {}
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 env:
   CARGO_TERM_COLOR: always
   MSRV: 1.89.0