fix: upgrade tslib from 1.10.0 to 1.11.0

Snyk has created this PR to upgrade tslib from 1.10.0 to 1.11.0.

See this package in NPM:
https://www.npmjs.com/package/tslib

See this project in Snyk:
https://app.snyk.io/org/dargmuesli/project/27abe629-474c-4bd3-acf9-6f1812cd3a8d?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package.json

@@ -20,7 +20,7 @@
     "@angular/common": "8.2.14",
     "@angular/animations": "8.2.14",
     "rxjs": "6.5.4",
-    "tslib": "1.10.0",
+    "tslib": "1.11.0",
     "zone.js": "0.10.2"
   },
   "devDependencies": {

yarn.lock

@@ -7364,6 +7364,11 @@ tslib@1.10.0, tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.10.0.tgz#c3c19f95973fb0a62973fb09d90d961ee43e5c8a"
   integrity sha512-qOebF53frne81cf0S9B41ByenJ3/IuH8yJKngAX35CmiZySA0khhkovshKK+jGCaMnVomla7gVlIcc3EvKPbTQ==
 
+tslib@1.11.0:
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.11.0.tgz#f1f3528301621a53220d58373ae510ff747a66bc"
+  integrity sha512-BmndXUtiTn/VDDrJzQE7Mm22Ix3PxgLltW9bSNLoeCY31gnG2OPx0QqJnuc9oMIKioYrz487i6K9o4Pdn0j+Kg==
+
 tslint@5.20.0:
   version "5.20.0"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.20.0.tgz#fac93bfa79568a5a24e7be9cdde5e02b02d00ec1"