fix: upgrade @types/react-router from 5.1.2 to 5.1.8 (#2286)

Snyk has created this PR to upgrade @types/react-router from 5.1.2 to 5.1.8.

See this package in npm:
https://www.npmjs.com/package/@types/react-router

See this project in Snyk:
https://app.snyk.io/org/nmanovic/project/2f167f1b-9eed-4bf3-96b4-7ac84449f680?utm_source=github&utm_medium=upgrade-pr

cvat-ui/package-lock.json

@@ -1163,9 +1163,9 @@
       }
     },
     "@types/react-router": {
-      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/@types/react-router/-/react-router-5.1.2.tgz",
-      "integrity": "sha512-euC3SiwDg3NcjFdNmFL8uVuAFTpZJm0WMFUw+4eXMUnxa7M9RGFEG0szt0z+/Zgk4G2k9JBFhaEnY64RBiFmuw==",
+      "version": "5.1.8",
+      "resolved": "https://registry.npmjs.org/@types/react-router/-/react-router-5.1.8.tgz",
+      "integrity": "sha512-HzOyJb+wFmyEhyfp4D4NYrumi+LQgQL/68HvJO+q6XtuHSDvw6Aqov7sCAhjbNq3bUPgPqbdvjXC5HeB2oEAPg==",
       "requires": {
         "@types/history": "*",
         "@types/react": "*"

cvat-ui/package.json

@@ -53,7 +53,7 @@
     "@types/react-color": "^3.0.2",
     "@types/react-dom": "^16.9.0",
     "@types/react-redux": "^7.1.2",
-    "@types/react-router": "^5.0.5",
+    "@types/react-router": "^5.1.8",
     "@types/react-router-dom": "^5.1.0",
     "@types/react-share": "^3.0.1",
     "@types/redux-logger": "^3.0.7",