Bump intl-relativeformat from 2.1.0 to 2.2.0 (#10887)

Bumps [intl-relativeformat](https://github.com/yahoo/intl-relativeformat) from 2.1.0 to 2.2.0.
- [Release notes](https://github.com/yahoo/intl-relativeformat/releases)
- [Commits](https://github.com/yahoo/intl-relativeformat/commits)

package.json

@@ -103,7 +103,7 @@
     "intersection-observer": "^0.5.1",
     "intl": "^1.2.5",
     "intl-messageformat": "^2.2.0",
-    "intl-relativeformat": "^2.1.0",
+    "intl-relativeformat": "^2.2.0",
     "is-nan": "^1.2.1",
     "js-yaml": "^3.11.0",
     "lodash": "^4.7.11",