chore: add concurrent workflow rules

Author: npalm

.github/workflows/stale.yml

@@ -6,7 +6,7 @@ on:
 
 concurrency:
   group: ${{ github.workflow }}
-  cancel-in-progress: false
+  cancel-in-progress: true
 
 permissions: {}
 jobs:

.github/zizmor.yml

@@ -12,3 +12,6 @@ rules:
   dangerous-triggers:
     ignore:
       - semantic-check.yml:2
+  concurrency-limits:
+    ignore:
+      - release.yml