Avoid workflows canceling each other out (#3183)

Co-authored-by: Gabriel Erzse <gabriel.erzse@redis.com>

Author: gerzse

.github/workflows/docs.yaml

@@ -13,7 +13,7 @@ on:
     - cron: '0 1 * * *' # nightly build
 
 concurrency:
-  group: ${{ github.event.pull_request.number || github.ref }}
+  group: ${{ github.event.pull_request.number || github.ref }}-docs
   cancel-in-progress: true
 
 permissions:

.github/workflows/integration.yaml

@@ -17,7 +17,7 @@ on:
     - cron: '0 1 * * *' # nightly build
 
 concurrency:
-  group: ${{ github.event.pull_request.number || github.ref }}
+  group: ${{ github.event.pull_request.number || github.ref }}-integration
   cancel-in-progress: true
 
 permissions: