Bump rxjs from 6.6.7 to 7.5.5

Bumps [rxjs](https://github.com/reactivex/rxjs) from 6.6.7 to 7.5.5.
- [Release notes](https://github.com/reactivex/rxjs/releases)
- [Changelog](https://github.com/ReactiveX/rxjs/blob/master/CHANGELOG.md)
- [Commits](ReactiveX/rxjs@6.6.7...7.5.5)

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

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

Author: dependabot[bot]

package.json

@@ -27,7 +27,7 @@
     "core-js": "^2.5.4",
     "intl": "^1.2.5",
     "material-ui-country-flags": "^3.0.1",
-    "rxjs": "~6.6.7",
+    "rxjs": "~7.5.5",
     "tslib": "^2.4.0",
     "zone.js": "~0.11.5"
   },

yarn.lock

@@ -7057,19 +7057,19 @@ rxjs-for-await@0.0.2:
   resolved "https://registry.yarnpkg.com/rxjs-for-await/-/rxjs-for-await-0.0.2.tgz#26598a1d6167147cc192172970e7eed4e620384b"
   integrity sha512-IJ8R/ZCFMHOcDIqoABs82jal00VrZx8Xkgfe7TOKoaRPAW5nH/VFlG23bXpeGdrmtqI9UobFPgUKgCuFc7Lncw==
 
-rxjs@6.6.7, rxjs@^6.5.4, rxjs@~6.6.7:
+rxjs@6.6.7, rxjs@^6.5.4:
   version "6.6.7"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.6.7.tgz#90ac018acabf491bf65044235d5863c4dab804c9"
   integrity sha512-hTdwr+7yYNIT5n4AMYp85KA6yw2Va0FLa3Rguvbpa4W3I5xynaBZo41cM3XM+4Q6fRMj3sBYIR1VAmZMXYJvRQ==
   dependencies:
     tslib "^1.9.0"
 
-rxjs@^7.2.0:
-  version "7.3.0"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-7.3.0.tgz#39fe4f3461dc1e50be1475b2b85a0a88c1e938c6"
-  integrity sha512-p2yuGIg9S1epc3vrjKf6iVb3RCaAYjYskkO+jHIaV0IjOPlJop4UnodOoFb2xeNwlguqLYvGw1b1McillYb5Gw==
+rxjs@^7.2.0, rxjs@~7.5.5:
+  version "7.5.5"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-7.5.5.tgz#2ebad89af0f560f460ad5cc4213219e1f7dd4e9f"
+  integrity sha512-sy+H0pQofO95VDmFLzyaw9xNJU4KTRSwQIGM6+iG3SypAtCiLDzpeG8sJrNCWn2Up9km+KhkvTdbkrdy+yzZdw==
   dependencies:
-    tslib "~2.1.0"
+    tslib "^2.1.0"
 
 safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
@@ -7843,16 +7843,11 @@ tslib@^1.8.1, tslib@^1.9.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
   integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
 
-tslib@^2.0.0, tslib@^2.2.0, tslib@^2.3.0, tslib@^2.4.0:
+tslib@^2.0.0, tslib@^2.1.0, tslib@^2.2.0, tslib@^2.3.0, tslib@^2.4.0:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
   integrity sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ==
 
-tslib@~2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.1.0.tgz#da60860f1c2ecaa5703ab7d39bc05b6bf988b97a"
-  integrity sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==
-
 tsutils@^3.21.0:
   version "3.21.0"
   resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-3.21.0.tgz#b48717d394cea6c1e096983eed58e9d61715b623"