Bump pyngrok from 4.1.3 to 4.1.4 (#235)

Bumps [pyngrok](https://github.com/alexdlaird/pyngrok) from 4.1.3 to 4.1.4.
- [Release notes](https://github.com/alexdlaird/pyngrok/releases)
- [Changelog](https://github.com/alexdlaird/pyngrok/blob/master/CHANGELOG.md)
- [Commits](alexdlaird/pyngrok@4.1.3...4.1.4)

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

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

requirements.txt

@@ -29,4 +29,4 @@ Sphinx==3.1.2
 psutil==5.7.0
 rollbar==0.15.0
 -e git+git://github.com/alexdlaird/django-health-check.git@alaird-3.5.6#egg=django-health-check
-pyngrok==4.1.3
+pyngrok==4.1.4