fix: package.json, yarn.lock & .snyk to reduce vulnerabilities

The following vulnerabilities are fixed with a Snyk patch:
- https://snyk.io/vuln/SNYK-JS-LODASH-567746

yarn.lock

@@ -2995,14 +2995,6 @@ apollo-link-http@^1.5.15, apollo-link-http@^1.5.5:
     apollo-link-http-common "^0.2.16"
     tslib "^1.9.3"
 
-apollo-link-ws@^1.0.20:
-  version "1.0.20"
-  resolved "https://registry.yarnpkg.com/apollo-link-ws/-/apollo-link-ws-1.0.20.tgz#dfad44121f8445c6d7b7f8101a1b24813ba008ed"
-  integrity sha512-mjSFPlQxmoLArpHBeUb2Xj+2HDYeTaJqFGOqQ+I8NVJxgL9lJe84PDWcPah/yMLv3rB7QgBDSuZ0xoRFBPlySw==
-  dependencies:
-    apollo-link "^1.2.14"
-    tslib "^1.9.3"
-
 apollo-link@^1.0.0, apollo-link@^1.2.12, apollo-link@^1.2.14, apollo-link@^1.2.3:
   version "1.2.14"
   resolved "https://registry.yarnpkg.com/apollo-link/-/apollo-link-1.2.14.tgz#3feda4b47f9ebba7f4160bef8b977ba725b684d9"
@@ -12141,7 +12133,7 @@ snyk-try-require@1.3.1, snyk-try-require@^1.1.1, snyk-try-require@^1.3.1:
     lru-cache "^4.0.0"
     then-fs "^2.0.0"
 
-snyk@^1.316.1:
+snyk@1.346.0, snyk@^1.346.0:
   version "1.346.0"
   resolved "https://registry.yarnpkg.com/snyk/-/snyk-1.346.0.tgz#c94646a7ca109a329095419542df92d10df9709f"
   integrity sha512-uwJDC0CRefppngm1J1M+Sja5CVfdmzLYkxGYp3ZYXrzvd912pgzrdYm8ciUL5a8x1/C+2L0iZ09W68daSuObhA==
@@ -12634,7 +12626,7 @@ stylehacks@^4.0.0:
     postcss "^7.0.0"
     postcss-selector-parser "^3.0.0"
 
-subscriptions-transport-ws@0.9.16, subscriptions-transport-ws@^0.9.16:
+subscriptions-transport-ws@0.9.16:
   version "0.9.16"
   resolved "https://registry.yarnpkg.com/subscriptions-transport-ws/-/subscriptions-transport-ws-0.9.16.tgz#90a422f0771d9c32069294c08608af2d47f596ec"
   integrity sha512-pQdoU7nC+EpStXnCfh/+ho0zE0Z+ma+i7xvj7bkXKb1dvYHSZxgRPaU6spRP+Bjzow67c/rRDoix5RT0uU9omw==