Update dependency rxjs to v7

Author: renovate-bot

package.json

@@ -33,7 +33,7 @@
     "lodash": "^4.17.21",
     "lru-cache": "^6.0.0",
     "mz": "^2.7.0",
-    "rxjs": "^6.6.7",
+    "rxjs": "^7.4.0",
     "sourcegraph": "25.4.0",
     "tagged-template-noop": "^2.1.1",
     "uuid": "^8.3.2"

yarn.lock

@@ -7164,13 +7164,20 @@ rxjs-report-usage@^1.0.4:
     glob "~7.1.6"
     prompts "~2.3.2"
 
-rxjs@^6.5.1, rxjs@^6.6.7:
+rxjs@^6.5.1:
   version "6.6.7"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.6.7.tgz#90ac018acabf491bf65044235d5863c4dab804c9"
   integrity sha512-hTdwr+7yYNIT5n4AMYp85KA6yw2Va0FLa3Rguvbpa4W3I5xynaBZo41cM3XM+4Q6fRMj3sBYIR1VAmZMXYJvRQ==
   dependencies:
     tslib "^1.9.0"
 
+rxjs@^7.4.0:
+  version "7.4.0"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-7.4.0.tgz#a12a44d7eebf016f5ff2441b87f28c9a51cebc68"
+  integrity sha512-7SQDi7xeTMCJpqViXh8gL/lebcwlp3d831F05+9B44A4B0WfsEwUQHR64gsH1kvJ+Ep/J9K2+n1hVl1CsGN23w==
+  dependencies:
+    tslib "~2.1.0"
+
 safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
@@ -8017,10 +8024,10 @@ tslib@^1.13.0, tslib@^1.8.1, tslib@^1.9.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.13.0.tgz#c881e13cc7015894ed914862d276436fa9a47043"
   integrity sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q==
 
-tslib@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.0.0.tgz#18d13fc2dce04051e20f074cc8387fd8089ce4f3"
-  integrity sha512-lTqkx847PI7xEDYJntxZH89L2/aXInsyF2luSafe/+0fHOMjlBNXdH6th7f70qxLDhul7KZK0zC8V5ZIyHl0/g==
+tslib@^2.0.0, tslib@~2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.1.0.tgz#da60860f1c2ecaa5703ab7d39bc05b6bf988b97a"
+  integrity sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==
 
 tslint@^6.1.3:
   version "6.1.3"