Bump @types/superagent from 4.1.8 to 4.1.9 (#1590)

Bumps [@types/superagent](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/superagent) from 4.1.8 to 4.1.9.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/superagent)

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package-lock.json

@@ -2746,9 +2746,9 @@
       "dev": true
     },
     "@types/superagent": {
-      "version": "4.1.8",
-      "resolved": "https://registry.npmjs.org/@types/superagent/-/superagent-4.1.8.tgz",
-      "integrity": "sha512-iol9KxQ7SLHatBJUiZ4uABrS4VS1frLjqPednxZz82eoCzo3Uy3TOH0p0ZIBbfBj8E/xqOtvizjBs9h7xi/l2g==",
+      "version": "4.1.9",
+      "resolved": "https://registry.npmjs.org/@types/superagent/-/superagent-4.1.9.tgz",
+      "integrity": "sha512-gpIC0p49YHT4VYDbdl0fKjOMWBurJFfYtKUIxOHzOwBtu5VT29FyldFI2vbmZ1K2iH2vS6MVcJZMjHM+652l4Q==",
       "dev": true,
       "requires": {
         "@types/cookiejar": "*",

package.json

@@ -84,7 +84,7 @@
     "@types/jasminewd2": "^2.0.8",
     "@types/node": "^14.0.27",
     "@types/selenium-webdriver": "^4.0.9",
-    "@types/superagent": "^4.1.8",
+    "@types/superagent": "^4.1.9",
     "adf-tslint-rules": "0.0.7",
     "ajv-cli": "^3.1.0",
     "codelyzer": "^6.0.0",