fix(ci): set CommandStep runAs and escape @ in pnpm version

.onedev-buildspec.yml

@@ -41,6 +41,8 @@ jobs:
     name: build and test
     runInContainer: true
     image: '@property:ciBuildImage@'
+    runAs: '0:0'
+    useTTY: false
     interpreter:
       type: DefaultInterpreter
       commands: |
@@ -50,7 +52,7 @@ jobs:
         bash ci/setup-toolchain.sh
 
         corepack enable
-        corepack prepare pnpm@10.33.2 --activate
+        corepack prepare pnpm@@10.33.2 --activate
 
         export CI=true
         export HOME="$(pwd)"