build(deps): bump react-intl from 5.13.5 to 5.15.7 (#1374)

Bumps [react-intl](https://github.com/formatjs/formatjs) from 5.13.5 to 5.15.7.
- [Release notes](https://github.com/formatjs/formatjs/releases)
- [Commits](https://github.com/formatjs/formatjs/compare/react-intl@5.13.5...react-intl@5.15.7)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -53,7 +53,7 @@
     "react-animate-height": "^2.0.23",
     "react-dom": "17.0.2",
     "react-intersection-observer": "^8.31.0",
-    "react-intl": "5.13.5",
+    "react-intl": "5.15.7",
     "react-markdown": "^5.0.3",
     "react-select": "^4.3.0",
     "react-spring": "^8.0.27",