chore(deps): pin dependencies (#819)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
diff --git a/.github/workflows/csi.yml b/.github/workflows/csi.yml
index 7683fd5..736763d 100644
--- a/.github/workflows/csi.yml
+++ b/.github/workflows/csi.yml
@@ -47,7 +47,7 @@
           - rbd
     steps:
       - name: Checkout project
-        uses: actions/checkout@v4
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
 
       - name: Install Poetry
         run: pipx install poetry