Bump jquery from 1.12.4 to 3.5.0 in /client

Bumps [jquery](https://github.com/jquery/jquery) from 1.12.4 to 3.5.0.
- [Release notes](https://github.com/jquery/jquery/releases)
- [Commits](jquery/jquery@1.12.4...3.5.0)

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

Author: dependabot[bot]

client/package-lock.json

@@ -21,7 +21,7 @@
     "@angular/router": "~9.1.4",
     "angular2-moment": "^1.9.0",
     "bootstrap": "^3.4.1",
-    "jquery": "^1.12.4",
+    "jquery": "^3.5.0",
     "ng-bootstrap-to-bootstrap-3": "^0.7.0",
     "popper.js": "^1.16.1",
     "rxjs": "~6.5.4",