Bump npm from 6.14.11 to 7.6.3

Bumps [npm](https://github.com/npm/cli) from 6.14.11 to 7.6.3.
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/latest/CHANGELOG.md)
- [Commits](npm/cli@v6.14.11...v7.6.3)

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

package.json

@@ -51,7 +51,7 @@
     "mobx": "^6.0.4",
     "mobx-keystone": "^0.48.2",
     "mobx-react-lite": "^3.1.6",
-    "npm": "^6.14.9",
+    "npm": "^7.6.3",
     "observable-hooks": "^3.1.2",
     "path-to-regexp": "^6.2.0",
     "phoenix": "^1.5.7",