build(deps): bump rxjs from 7.5.1 to 7.5.2 in /frank-flow/src/frontend

Bumps [rxjs](https://github.com/reactivex/rxjs) from 7.5.1 to 7.5.2.
- [Release notes](https://github.com/reactivex/rxjs/releases)
- [Changelog](https://github.com/ReactiveX/rxjs/blob/master/CHANGELOG.md)
- [Commits](ReactiveX/rxjs@7.5.1...7.5.2)

---
updated-dependencies:
- dependency-name: rxjs
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

frank-flow/src/frontend/package.json

@@ -37,7 +37,7 @@
     "ngx-panzoom": "^13.0.0",
     "ngx-smart-modal": "^7.4.1",
     "ngx-toastr": "^14.2.1",
-    "rxjs": "~7.5.1",
+    "rxjs": "~7.5.2",
     "saxes": "^6.0.0",
     "tslib": "^2.3.1",
     "zone.js": "~0.11.4"

frank-flow/src/frontend/yarn.lock

@@ -7225,10 +7225,10 @@ rxjs@6.6.7, rxjs@^6.5.4:
   dependencies:
     tslib "^1.9.0"
 
-rxjs@^7.2.0, rxjs@^7.4.0, rxjs@~7.5.1:
-  version "7.5.1"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-7.5.1.tgz#af73df343cbcab37628197f43ea0c8256f54b157"
-  integrity sha512-KExVEeZWxMZnZhUZtsJcFwz8IvPvgu4G2Z2QyqjZQzUGr32KDYuSxrEYO4w3tFFNbfLozcrKUTvTPi+E9ywJkQ==
+rxjs@^7.2.0, rxjs@^7.4.0, rxjs@~7.5.2:
+  version "7.5.2"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-7.5.2.tgz#11e4a3a1dfad85dbf7fb6e33cbba17668497490b"
+  integrity sha512-PwDt186XaL3QN5qXj/H9DGyHhP3/RYYgZZwqBv9Tv8rsAaiwFH1IsJJlcgD37J7UW5a6O67qX0KWKS3/pu0m4w==
   dependencies:
     tslib "^2.1.0"