build(deps): bump rxjs from 7.1.0 to 7.2.0 (#2994)

Bumps [rxjs](https://github.com/reactivex/rxjs) from 7.1.0 to 7.2.0.
- [Release notes](https://github.com/reactivex/rxjs/releases)
- [Changelog](https://github.com/ReactiveX/rxjs/blob/master/CHANGELOG.md)
- [Commits](ReactiveX/rxjs@7.1.0...7.2.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

packages/core/package.json

@@ -77,7 +77,7 @@
     "npm-run-path": "~4.0.1",
     "progress": "~2.0.0",
     "rimraf": "~3.0.0",
-    "rxjs": "~7.1.0",
+    "rxjs": "~7.2.0",
     "source-map": "~0.7.3",
     "tree-kill": "~1.2.2",
     "tslib": "~2.3.0",

packages/test-helpers/package.json

@@ -20,7 +20,7 @@
   "dependencies": {
     "ajv": "~8.6.0",
     "mutation-testing-metrics": "1.7.3",
-    "rxjs": "~7.1.0"
+    "rxjs": "~7.2.0"
   },
   "devDependencies": {
     "@stryker-mutator/api": "5.2.1",