Bump flake8-debugger from 3.1.0 to 3.1.1 in /{{cookiecutter.app_name}}

Bumps [flake8-debugger](https://github.com/jbkahn/flake8-debugger) from 3.1.0 to 3.1.1.
- [Release notes](https://github.com/jbkahn/flake8-debugger/releases)
- [Commits](https://github.com/jbkahn/flake8-debugger/compare/3.1.0...3.1.1)

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

{{cookiecutter.app_name}}/Pipfile

@@ -53,7 +53,7 @@ pdbpp = "==0.10.2"
 black = "==19.3b0"
 flake8 = "==3.7.8"
 flake8-blind-except = "==0.1.1"
-flake8-debugger = "==3.1.0"
+flake8-debugger = "==3.1.1"
 flake8-docstrings = "==1.5.0"
 flake8-isort = "==2.7.0"
 isort = "==4.3.21"