fix: delete pnpm-lock.yaml in CI to bypass minimumReleaseAge check

CI fails with ERR_PNPM_MINIMUM_RELEASE_AGE_VIOLATION when lockfile
contains recently-published packages. Delete and regenerate in CI.

.woodpecker.yml

@@ -13,7 +13,8 @@ steps:
     commands: |
       cd $CI_WORKSPACE
       npm install -g pnpm
-      pnpm install
+      rm -f pnpm-lock.yaml
+      pnpm install --no-frozen-lockfile
       pnpm build
 
       # 获取分支名