Bump cryptography from 3.3.1 to 3.4.2

Bumps [cryptography](https://github.com/pyca/cryptography) from 3.3.1 to 3.4.2.
- [Release notes](https://github.com/pyca/cryptography/releases)
- [Changelog](https://github.com/pyca/cryptography/blob/3.4.2/CHANGELOG.rst)
- [Commits](https://github.com/pyca/cryptography/compare/3.3.1...3.4.2)

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

requirements-dev.txt

@@ -18,7 +18,7 @@ chardet==3.0.4
     # via requests
 colorama==0.4.3
     # via twine
-cryptography==3.3.1
+cryptography==3.4.2
     # via secretstorage
 distlib==0.3.0
     # via virtualenv
@@ -81,7 +81,6 @@ secretstorage==3.1.2
 six==1.15.0
     # via
     #   bleach
-    #   cryptography
     #   readme-renderer
     #   virtualenv
 toml==0.10.0

requirements-tests.txt

@@ -44,7 +44,7 @@ click==7.1.2
     #   flask
 coverage==5.4
     # via -r requirements-tests.in
-cryptography==3.3.1
+cryptography==3.4.2
     # via
     #   moto
     #   python-jose
@@ -192,7 +192,6 @@ six==1.15.0
     #   aws-sam-translator
     #   bandit
     #   cfn-lint
-    #   cryptography
     #   docker
     #   ecdsa
     #   fakeredis

requirements.txt

@@ -57,7 +57,7 @@ click==7.1.2
     # via flask
 cloudflare==2.8.15
     # via -r requirements.in
-cryptography==3.3.1
+cryptography==3.4.2
     # via
     #   -r requirements.in
     #   acme
@@ -230,7 +230,6 @@ six==1.15.0
     #   -r requirements.in
     #   acme
     #   bcrypt
-    #   cryptography
     #   flask-cors
     #   flask-restful
     #   hvac