chore(deps-dev): bump lolex from 4.2.0 to 5.1.1 (#77)

Bumps [lolex](https://github.com/sinonjs/lolex) from 4.2.0 to 5.1.1.
- [Release notes](https://github.com/sinonjs/lolex/releases)
- [Changelog](https://github.com/sinonjs/lolex/blob/master/CHANGELOG.md)
- [Commits](sinonjs/fake-timers@v4.2.0...v5.1.1)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -52,7 +52,7 @@
     "karma-sinon-chai": "^2.0.2",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-webpack": "^4.0.2",
-    "lolex": "^4.1.0",
+    "lolex": "^5.1.1",
     "mocha": "^6.1.4",
     "pdfjs-dist": "2.1.266",
     "sinon": "^7.3.2",