Bump cryptography from 2.8.0 to 39.0.1

Bumps [cryptography](https://github.com/pyca/cryptography) from 2.8.0 to 39.0.1.
- [Release notes](https://github.com/pyca/cryptography/releases)
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@2.8...39.0.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.in

@@ -1,5 +1,5 @@
 asn1==2.2.0 # asn1 2.3.0 introduces enum34 as a dependency, which causes problems on some envs
-cryptography==2.8.0
+cryptography==39.0.1
 cffi==1.14.3
 future==0.18.2
 itsdangerous==1.1.0

requirements.txt

@@ -14,7 +14,7 @@ cffi==1.14.3
     #   cryptography
 chardet==3.0.4
     # via requests
-cryptography==2.8
+cryptography==39.0.1
     # via
     #   -r requirements.in
     #   pyopenssl
@@ -44,7 +44,6 @@ requests==2.21.0
     # via -r requirements.in
 six==1.10.0
     # via
-    #   cryptography
     #   protobuf
     #   pyopenssl
 urllib3==1.24.3