Fix go.sum handling to avoid errors when file isn't modified

Co-authored-by: intel352 <77607+intel352@users.noreply.github.com>

Author: Copilot

.github/workflows/module-release.yml

@@ -318,7 +318,9 @@ jobs:
           # Commit the change
           git config user.name 'github-actions[bot]'
           git config user.email 'github-actions[bot]@users.noreply.github.com'
-          git add "modules/${MODULE}/go.mod" "modules/${MODULE}/go.sum"
+          git add "modules/${MODULE}/go.mod"
+          # Add go.sum if it was modified
+          git add "modules/${MODULE}/go.sum" 2>/dev/null || true
           git commit -m "chore(${MODULE}): update module path for v${MAJOR_VERSION}
 
 This updates the ${MODULE} module path from:

.github/workflows/release.yml

@@ -266,7 +266,9 @@ jobs:
           # Commit the change
           git config user.name 'github-actions[bot]'
           git config user.email 'github-actions[bot]@users.noreply.github.com'
-          git add go.mod go.sum
+          git add go.mod
+          # Add go.sum if it was modified
+          git add go.sum 2>/dev/null || true
           git commit -m "chore: update module path for v${MAJOR_VERSION}
 
 This updates the module path from: