refactor(workflow): changes default permissions to read for few workflows increasing security (#3905)

* refactor: makes read default permision

---------

Signed-off-by: BLANKatGITHUB <131886247+BLANKatGITHUB@users.noreply.github.com>

.github/workflows/benchmark.yml

@@ -5,6 +5,9 @@ on:
     - cron: "0 9 * * *" # run at 6 AM UTC
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   benchmark:
     strategy:

.github/workflows/bullmq-tests.yml

@@ -3,6 +3,9 @@ name: bullmq-tests
 on:
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest

.github/workflows/test-fakeredis.yml

@@ -5,6 +5,9 @@ on:
   workflow_dispatch:
   pull_request:
 
+permissions:
+  contents: read 
+
 concurrency:
   group: dragonfly-${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true