Merge pull request #31 from langchain-ai/alert-autofix-2

fix: code scanning alert no. 2: Workflow does not contain permissions

Author: jkennedyvz

.github/workflows/unit-tests.yml

@@ -8,6 +8,9 @@ on:
   pull_request:
   workflow_dispatch: # Allows triggering the workflow manually in GitHub UI
 
+permissions:
+  contents: read
+
 # If another push to the same PR or branch happens while this workflow is still running,
 # cancel the earlier run in favor of the next run.
 concurrency: