chore(scripts): clean the clear artifacts script (#2708)

current clean script is not up-to-date

Author: AllanZhengYP

package.json

@@ -9,8 +9,8 @@
     "generate-clients": "node ./scripts/generate-clients",
     "bootstrap": "yarn",
     "clean": "yarn clear-build-cache && yarn clear-build-info && lerna clean",
-    "clear-build-cache": "rimraf ./packages/*/dist ./clients/*/dist ./lib/*/dist ./packages/*/types ./clients/*/types ./lib/*/types",
-    "clear-build-info": "rimraf ./packages/**/*.tsbuildinfo ./clients/**/*.tsbuildinfo  ./lib/**/*.tsbuildinfo",
+    "clear-build-cache": "rimraf ./packages/*/dist ./clients/*/dist ./lib/*/dist ./protocol_tests/*/dist",
+    "clear-build-info": "rimraf ./packages/**/*.tsbuildinfo ./clients/**/*.tsbuildinfo  ./lib/**/*.tsbuildinfo ./protocol_tests/**/*.tsbuildinfo",
     "remove-documentation": "rimraf ./docs",
     "build:crypto-dependencies": "lerna run --scope '@aws-sdk/{types,util-utf8-browser,util-locate-window,hash-node}' --include-dependencies build",
     "build:protocols": "yarn build:crypto-dependencies && lerna run --scope '@aws-sdk/aws-*' --ignore '@aws-sdk/*-server' --include-dependencies build",
@@ -122,4 +122,4 @@
     ],
     "**/*.{ts,js,md,json}": "prettier --write"
   }
-}
+}