[CI] Add conditional concurrency to low risk workflows (#28192)

.github/workflows/cljs.yml

@@ -7,6 +7,10 @@ on:
       - 'release-**'
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
 
   shared-tests-cljs:

.github/workflows/i18n.yml

@@ -7,6 +7,10 @@ on:
       - 'release-**'
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
 
   verify-i18n-files: