ci: bump typecheck timeout to 15 minutes

Setup phase (ssh2 native build) eats ~5min, leaving insufficient time
for typecheck across 37 packages within the 10min limit.

.github/workflows/code-quality.yml

@@ -90,7 +90,7 @@ jobs:
 
   typecheck:
     runs-on: ubuntu-latest
-    timeout-minutes: 10
+    timeout-minutes: 15
     steps:
       - uses: actions/checkout@v6
         with: