fix(deps): update dependency @sentry/browser to v7 [security]

Author: renovate[bot]

package.json

@@ -10,7 +10,7 @@
     "@fancyapps/fancybox": "^3.5.7",
     "@material-ui/core": "^4.2.1",
     "@mitodl/iso-3166-2": "^1.0.1",
-    "@sentry/browser": "^6.4.1",
+    "@sentry/browser": "^7.0.0",
     "@sentry/webpack-plugin": "^1.18.3",
     "ajaxchimp": "^1.3.0",
     "autoprefixer": "^7.1.1",