chore(deps): update dependency rxjs to v7.5.6

Author: renovate[bot]

package-lock.json

@@ -41,7 +41,7 @@
     "prettier": "2.7.1",
     "reflect-metadata": "0.1.13",
     "release-it": "15.1.1",
-    "rxjs": "7.5.5",
+    "rxjs": "7.5.6",
     "supertest": "6.2.4",
     "ts-jest": "28.0.5",
     "ts-node": "10.8.2",