Bump future from 0.18.2 to 0.18.3

Bumps [future](https://github.com/PythonCharmers/python-future) from 0.18.2 to 0.18.3.
- [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@v0.18.2...v0.18.3)

---
updated-dependencies:
- dependency-name: future
  dependency-type: direct:production
...

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

Author: dependabot[bot]

generated.txt

@@ -34,7 +34,7 @@ fasteners==0.14.1
 filelock==3.0.12
 Flask==1.1.1
 fluent==0.10.0
-future==0.18.2
+future==0.18.3
 httplib2==0.14.0
 idna==2.8
 ifaddr==0.1.6

requirements.txt

@@ -37,7 +37,7 @@ filelock==3.0.12
 Flask==1.1.1
 fluent==0.10.0
 fluent-logger==0.10.0
-future==0.18.2
+future==0.18.3
 googleapis-common-protos==1.58.0
 greenlet==2.0.1
 grpcio==1.51.1