Bump semver from 2.13.0 to 3.0.4

Bumps [semver](https://github.com/python-semver/python-semver) from 2.13.0 to 3.0.4.
- [Release notes](https://github.com/python-semver/python-semver/releases)
- [Changelog](https://github.com/python-semver/python-semver/blob/master/CHANGELOG.rst)
- [Commits](python-semver/python-semver@2.13.0...3.0.4)

---
updated-dependencies:
- dependency-name: semver
  dependency-version: 3.0.4
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Pipfile

@@ -9,7 +9,7 @@ pytest-cov = "==4.1.0"
 mypy = "==0.942"
 coveralls = "==3.3.1"
 flake8 = "==4.0.1"
-semver = "==2.13.0"
+semver = "==3.0.4"
 pymongo = "==4.1.1"
 
 [packages]