build(deps): bump future from 0.18.3 to 1.0.0

Bumps [future](https://github.com/PythonCharmers/python-future) from 0.18.3 to 1.0.0.
- [Release notes](https://github.com/PythonCharmers/python-future/releases)
- [Changelog](https://github.com/PythonCharmers/python-future/blob/master/docs/changelog.rst)
- [Commits](PythonCharmers/python-future@v0.18.3...v1.0.0)

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

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

requirements.txt

@@ -2,7 +2,7 @@
 # it is doubtful that Plex will ever update to Python 3+
 flask==1.1.4;python_version<"3"
 flask-babel==1.0.0;python_version<"3"
-future==0.18.3
+future==1.0.0
 plexapi-backport[alert]==4.15.10  # custom python-plexapi supporting python 2.7
 polib==1.2.0;python_version<"3"
 requests==2.27.1;python_version<"3"  # 2.27 is last version supporting Python 2.7