<NME> test-requirements.txt
<BEF> argon2-cffi>=16.1.0
factory-boy<3.3.0
httmock==1.4.0
testfixtures==6.18.5
tox
asynctest

<MSG> Bump testfixtures from 6.18.5 to 7.0.0

Bumps [testfixtures](https://github.com/Simplistix/testfixtures) from 6.18.5 to 7.0.0.
- [Release notes](https://github.com/Simplistix/testfixtures/releases)
- [Changelog](https://github.com/simplistix/testfixtures/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/Simplistix/testfixtures/compare/6.18.5...7.0.0)

---
updated-dependencies:
- dependency-name: testfixtures
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
<DFF> @@ -1,6 +1,6 @@
 argon2-cffi>=16.1.0
 factory-boy<3.3.0
 httmock==1.4.0
-testfixtures==6.18.5
+testfixtures==7.0.0
 tox
 asynctest

Bump testfixtures from 6.18.5 to 7.0.0