diff --git a/.github/env b/.github/env
new file mode 100644
index 0000000..e6a968b
--- /dev/null
+++ b/.github/env
@@ -0,0 +1 @@
+golang-version=1.23.0
diff --git a/.github/workflows/code-gen.yaml b/.github/workflows/code-gen.yaml
index 652d8fe..86ca9a9 100644
--- a/.github/workflows/code-gen.yaml
+++ b/.github/workflows/code-gen.yaml
@@ -37,7 +37,8 @@ jobs:
         id: git-diff
         run: |
           git diff --exit-code .
-          echo "GIT_DIFF=$?" >> $GITHUB_OUTPUT
+          EXIT_CODE=$(echo $?)
+          echo "GIT_DIFF=${EXIT_CODE}" >> $GITHUB_OUTPUT
       - name: Create PR
         if: steps.git-diff.outputs.GIT_DIFF == '1'
         id: cpr