ci: Fix canary test implosion (#12915)

Author: Luca Forstner

.github/workflows/canary.yml

@@ -18,6 +18,7 @@ env:
     ${{ github.workspace }}/node_modules
     ${{ github.workspace }}/packages/*/node_modules
     ${{ github.workspace }}/dev-packages/*/node_modules
+    ${{ github.workspace }}/packages/utils/build
 
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   contents: read