Bump snyk from 1.437.2 to 1.437.4 (#6532)

Bumps [snyk](https://github.com/snyk/snyk) from 1.437.2 to 1.437.4.
- [Release notes](https://github.com/snyk/snyk/releases)
- [Changelog](https://github.com/snyk/snyk/blob/master/.releaserc)
- [Commits](https://github.com/snyk/snyk/compare/v1.437.2...v1.437.4)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -100,7 +100,7 @@
     "pdfjs-dist": "2.5.207",
     "raphael": "2.3.0",
     "rxjs": "^6.6.3",
-    "snyk": "^1.437.2",
+    "snyk": "^1.437.4",
     "tslib": "^2.0.3",
     "zone.js": "~0.10.2"
   },