chore(deps): bump express-rate-limit from 5.2.5 to 5.2.6 (#611)

Bumps [express-rate-limit](https://github.com/nfriedly/express-rate-limit) from 5.2.5 to 5.2.6.
- [Release notes](https://github.com/nfriedly/express-rate-limit/releases)
- [Commits](express-rate-limit/express-rate-limit@v5.2.5...v5.2.6)

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

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

package.json

@@ -137,7 +137,7 @@
     "dagre-d3": "^0.6.4",
     "ejs": "^3.1.6",
     "express": "^4.17.1",
-    "express-rate-limit": "^5.2.5",
+    "express-rate-limit": "^5.2.6",
     "fs-extra": "^9.1.0",
     "hammerjs": "^2.0.8",
     "jsonfile": "^6.1.0",