Bump croniter from 0.3.34 to 1.0.1

Bumps [croniter](https://github.com/kiorky/croniter) from 0.3.34 to 1.0.1.
- [Release notes](https://github.com/kiorky/croniter/releases)
- [Changelog](https://github.com/kiorky/croniter/blob/master/docs/CHANGES.rst)
- [Commits](kiorky/croniter@0.3.34...1.0.1)

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

requirements.txt

@@ -7,7 +7,7 @@
 attrs==18.1.0             # via pytest
 click==7.1.2              # via -r requirements.in, pip-tools
 coverage==5.0.4           # via pytest-cov
-croniter==0.3.34          # via -r requirements.in
+croniter==1.0.1           # via -r requirements.in
 flake8-isort==4.0.0       # via -r requirements.in
 flake8==3.8.4             # via -r requirements.in, flake8-isort
 importlib-metadata==1.5.0  # via flake8, pluggy, pytest