fix(snap): use foo/pnpm-workspace.yaml path for subpath migration test

The subpath migration creates pnpm-workspace.yaml inside the foo/
subdirectory, not the test root. Fixes musl CI failure caused by
different cat error message format between Alpine and glibc.

Author: fengmk2

packages/cli/snap-tests-global/migration-subpath/snap.txt

@@ -37,5 +37,18 @@ export default defineConfig({
 > git config --local core.hooksPath || echo 'core.hooksPath is not set' # should NOT be set
 core.hooksPath is not set
 
-[1]> cat pnpm-workspace.yaml # check pnpm-workspace.yaml has overrides and catalog
-cat: pnpm-workspace.yaml: No such file or directory
+> cat foo/pnpm-workspace.yaml # check pnpm-workspace.yaml has overrides and catalog
+catalog:
+  vite: npm:@voidzero-dev/vite-plus-core@latest
+  vitest: npm:@voidzero-dev/vite-plus-test@latest
+  vite-plus: latest
+overrides:
+  vite: 'catalog:'
+  vitest: 'catalog:'
+peerDependencyRules:
+  allowAny:
+    - vite
+    - vitest
+  allowedVersions:
+    vite: '*'
+    vitest: '*'

packages/cli/snap-tests-global/migration-subpath/steps.json

@@ -8,6 +8,6 @@
     "cat foo/package.json # check package.json",
     "cat foo/vite.config.ts # check vite.config.ts",
     "git config --local core.hooksPath || echo 'core.hooksPath is not set' # should NOT be set",
-    "cat pnpm-workspace.yaml # check pnpm-workspace.yaml has overrides and catalog"
+    "cat foo/pnpm-workspace.yaml # check pnpm-workspace.yaml has overrides and catalog"
   ]
 }