Bump query-string from 6.8.3 to 6.9.0 (#47)

Bumps [query-string](https://github.com/sindresorhus/query-string) from 6.8.3 to 6.9.0.
- [Release notes](https://github.com/sindresorhus/query-string/releases)
- [Commits](https://github.com/sindresorhus/query-string/compare/v6.8.3...v6.9.0)

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

package.json

@@ -25,7 +25,7 @@
     "mobx": "^5.15.1",
     "mobx-react": "^6.1.4",
     "prop-types": "^15.6.2",
-    "query-string": "^6.2.0",
+    "query-string": "^6.9.0",
     "react": "^16.12.0",
     "react-dom": "^16.8.0",
     "react-select": "^3.0.4",

yarn.lock

@@ -6087,10 +6087,10 @@ query-string@^4.1.0:
     object-assign "^4.1.0"
     strict-uri-encode "^1.0.0"
 
-query-string@^6.2.0:
-  version "6.8.3"
-  resolved "https://registry.yarnpkg.com/query-string/-/query-string-6.8.3.tgz#fd9fb7ffb068b79062b43383685611ee47777d4b"
-  integrity sha512-llcxWccnyaWlODe7A9hRjkvdCKamEKTh+wH8ITdTc3OhchaqUZteiSCX/2ablWHVrkVIe04dntnaZJ7BdyW0lQ==
+query-string@^6.9.0:
+  version "6.9.0"
+  resolved "https://registry.yarnpkg.com/query-string/-/query-string-6.9.0.tgz#1c3b727c370cf00f177c99f328fda2108f8fa3dd"
+  integrity sha512-KG4bhCFYapExLsUHrFt+kQVEegF2agm4cpF/VNc6pZVthIfCc/GK8t8VyNIE3nyXG9DK3Tf2EGkxjR6/uRdYsA==
   dependencies:
     decode-uri-component "^0.2.0"
     split-on-first "^1.0.0"