Merge pull request #2688 from thelounge/renovate/yarn-1.x

fix(deps): update dependency yarn to v1.9.4

package.json

@@ -63,7 +63,7 @@
     "ua-parser-js": "0.7.18",
     "uuid": "3.3.2",
     "web-push": "3.3.2",
-    "yarn": "1.9.2"
+    "yarn": "1.9.4"
   },
   "optionalDependencies": {
     "sqlite3": "4.0.2"

yarn.lock

@@ -8018,9 +8018,9 @@ yargs@~3.10.0:
     decamelize "^1.0.0"
     window-size "0.1.0"
 
-yarn@1.9.2:
-  version "1.9.2"
-  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.9.2.tgz#7666c6db0fed8dc090ae0dce11a8a28b1d82e391"
+yarn@1.9.4:
+  version "1.9.4"
+  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.9.4.tgz#3b82d8446b652775723900b470d966861976924b"
 
 yeast@0.1.2:
   version "0.1.2"