Bump pipenv from 2018.11.26 to 2022.1.8

Bumps [pipenv](https://github.com/pypa/pipenv) from 2018.11.26 to 2022.1.8.
- [Release notes](https://github.com/pypa/pipenv/releases)
- [Changelog](https://github.com/pypa/pipenv/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pypa/pipenv/compare/v2018.11.26...v2022.1.8)

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

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

requirements.txt

@@ -74,7 +74,7 @@ pexpect==4.7.0
 pickleshare==0.7.5
 pigpio==1.44
 Pillow==6.2.1
-pipenv==2018.11.26
+pipenv==2022.1.8
 pkginfo==1.5.0.1
 pocket==0.3.6
 prompt-toolkit==2.0.10
@@ -227,7 +227,7 @@ pexpect==4.7.0
 pickleshare==0.7.5
 pigpio==1.44
 Pillow==6.2.1
-pipenv==2018.11.26
+pipenv==2022.1.8
 pkginfo==1.5.0.1
 pocket==0.3.6
 prompt-toolkit==2.0.10