Bump stringstream from 0.0.5 to 0.0.6

Bumps [stringstream](https://github.com/mhart/StringStream) from 0.0.5 to 0.0.6.
- [Release notes](https://github.com/mhart/StringStream/releases)
- [Commits](https://github.com/mhart/StringStream/compare/v0.0.5...v0.0.6)

Signed-off-by: dependabot[bot] <support@github.com>

services/document-updater/package-lock.json

@@ -2874,9 +2874,9 @@
       }
     },
     "stringstream": {
-      "version": "0.0.5",
-      "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
-      "integrity": "sha1-TkhM1N5aC7vuGORjB3EKioFiGHg="
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.6.tgz",
+      "integrity": "sha512-87GEBAkegbBcweToUrdzf3eLhWNg06FJTebl4BVJz/JgWy8CvEr9dRtX5qWphiynMSQlxxi+QqN0z5T32SLlhA=="
     },
     "tdigest": {
       "version": "0.1.1",