Bump cryptography from 3.3.1 to 3.4.3

Bumps [cryptography](https://github.com/pyca/cryptography) from 3.3.1 to 3.4.3.
- [Release notes](https://github.com/pyca/cryptography/releases)
- [Changelog](https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pyca/cryptography/compare/3.3.1...3.4.3)

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

poetry.lock

@@ -129,22 +129,22 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [[package]]
 name = "cryptography"
-version = "3.3.1"
+version = "3.4.3"
 description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
 category = "main"
 optional = false
-python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*"
+python-versions = ">=3.6"
 
 [package.dependencies]
 cffi = ">=1.12"
-six = ">=1.4.1"
 
 [package.extras]
 docs = ["sphinx (>=1.6.5,!=1.8.0,!=3.1.0,!=3.1.1)", "sphinx-rtd-theme"]
 docstest = ["doc8", "pyenchant (>=1.6.11)", "twine (>=1.12.0)", "sphinxcontrib-spelling (>=4.0.1)"]
 pep8test = ["black", "flake8", "flake8-import-order", "pep8-naming"]
+sdist = ["setuptools-rust (>=0.11.4)"]
 ssh = ["bcrypt (>=3.1.5)"]
-test = ["pytest (>=3.6.0,!=3.9.0,!=3.9.1,!=3.9.2)", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,!=3.79.2)"]
+test = ["pytest (>=6.0)", "pytest-cov", "pytest-subtests", "pytest-xdist", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,!=3.79.2)"]
 
 [[package]]
 name = "future"
@@ -683,6 +683,7 @@ cffi = [
     {file = "cffi-1.14.4-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:840793c68105fe031f34d6a086eaea153a0cd5c491cde82a74b420edd0a2b909"},
     {file = "cffi-1.14.4-cp39-cp39-manylinux1_i686.whl", hash = "sha256:b18e0a9ef57d2b41f5c68beefa32317d286c3d6ac0484efd10d6e07491bb95dd"},
     {file = "cffi-1.14.4-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:045d792900a75e8b1e1b0ab6787dd733a8190ffcf80e8c8ceb2fb10a29ff238a"},
+    {file = "cffi-1.14.4-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:7ef7d4ced6b325e92eb4d3502946c78c5367bc416398d387b39591532536734e"},
     {file = "cffi-1.14.4-cp39-cp39-win32.whl", hash = "sha256:ba4e9e0ae13fc41c6b23299545e5ef73055213e466bd107953e4a013a5ddd7e3"},
     {file = "cffi-1.14.4-cp39-cp39-win_amd64.whl", hash = "sha256:f032b34669220030f905152045dfa27741ce1a6db3324a5bc0b96b6c7420c87b"},
     {file = "cffi-1.14.4.tar.gz", hash = "sha256:1a465cbe98a7fd391d47dce4b8f7e5b921e6cd805ef421d04f5f66ba8f06086c"},
@@ -696,20 +697,13 @@ colorama = [
     {file = "colorama-0.4.4.tar.gz", hash = "sha256:5941b2b48a20143d2267e95b1c2a7603ce057ee39fd88e7329b0c292aa16869b"},
 ]
 cryptography = [
-    {file = "cryptography-3.3.1-cp27-cp27m-macosx_10_10_x86_64.whl", hash = "sha256:c366df0401d1ec4e548bebe8f91d55ebcc0ec3137900d214dd7aac8427ef3030"},
-    {file = "cryptography-3.3.1-cp27-cp27m-manylinux1_x86_64.whl", hash = "sha256:9f6b0492d111b43de5f70052e24c1f0951cb9e6022188ebcb1cc3a3d301469b0"},
-    {file = "cryptography-3.3.1-cp27-cp27m-manylinux2010_x86_64.whl", hash = "sha256:a69bd3c68b98298f490e84519b954335154917eaab52cf582fa2c5c7efc6e812"},
-    {file = "cryptography-3.3.1-cp27-cp27m-win32.whl", hash = "sha256:84ef7a0c10c24a7773163f917f1cb6b4444597efd505a8aed0a22e8c4780f27e"},
-    {file = "cryptography-3.3.1-cp27-cp27m-win_amd64.whl", hash = "sha256:594a1db4511bc4d960571536abe21b4e5c3003e8750ab8365fafce71c5d86901"},
-    {file = "cryptography-3.3.1-cp27-cp27mu-manylinux1_x86_64.whl", hash = "sha256:0003a52a123602e1acee177dc90dd201f9bb1e73f24a070db7d36c588e8f5c7d"},
-    {file = "cryptography-3.3.1-cp27-cp27mu-manylinux2010_x86_64.whl", hash = "sha256:83d9d2dfec70364a74f4e7c70ad04d3ca2e6a08b703606993407bf46b97868c5"},
-    {file = "cryptography-3.3.1-cp36-abi3-macosx_10_10_x86_64.whl", hash = "sha256:dc42f645f8f3a489c3dd416730a514e7a91a59510ddaadc09d04224c098d3302"},
-    {file = "cryptography-3.3.1-cp36-abi3-manylinux1_x86_64.whl", hash = "sha256:788a3c9942df5e4371c199d10383f44a105d67d401fb4304178020142f020244"},
-    {file = "cryptography-3.3.1-cp36-abi3-manylinux2010_x86_64.whl", hash = "sha256:69e836c9e5ff4373ce6d3ab311c1a2eed274793083858d3cd4c7d12ce20d5f9c"},
-    {file = "cryptography-3.3.1-cp36-abi3-manylinux2014_aarch64.whl", hash = "sha256:9e21301f7a1e7c03dbea73e8602905a4ebba641547a462b26dd03451e5769e7c"},
-    {file = "cryptography-3.3.1-cp36-abi3-win32.whl", hash = "sha256:b4890d5fb9b7a23e3bf8abf5a8a7da8e228f1e97dc96b30b95685df840b6914a"},
-    {file = "cryptography-3.3.1-cp36-abi3-win_amd64.whl", hash = "sha256:0e85aaae861d0485eb5a79d33226dd6248d2a9f133b81532c8f5aae37de10ff7"},
-    {file = "cryptography-3.3.1.tar.gz", hash = "sha256:7e177e4bea2de937a584b13645cab32f25e3d96fc0bc4a4cf99c27dc77682be6"},
+    {file = "cryptography-3.4.3-cp36-abi3-macosx_10_10_x86_64.whl", hash = "sha256:3cce61b179ff415ccc67393c6d6fa577aedb23d776779527c79ebf2438d4d25b"},
+    {file = "cryptography-3.4.3-cp36-abi3-manylinux2010_x86_64.whl", hash = "sha256:bbce8faaaee586d5c84c5eacf77f227710b3bf24f229f6ced6f9fe3e7a662223"},
+    {file = "cryptography-3.4.3-cp36-abi3-manylinux2014_aarch64.whl", hash = "sha256:1a37179da6d3a67db8e324d60d9e421b3cfd5ca6467b6861d9b1ce86dd191be3"},
+    {file = "cryptography-3.4.3-cp36-abi3-manylinux2014_x86_64.whl", hash = "sha256:180baf51ad689b3b86bce7c2bf0cfff491fdea16fa2fe640a77e316ee26bad1e"},
+    {file = "cryptography-3.4.3-cp36-abi3-win32.whl", hash = "sha256:965fd6905f188876a49f1b9edadad0847ef8d056cd4995e82b9a4f03ac049bd0"},
+    {file = "cryptography-3.4.3-cp36-abi3-win_amd64.whl", hash = "sha256:c58467c96f3b79cf9eb4628371c235427db2c1ece210c2c539d38d23338875e4"},
+    {file = "cryptography-3.4.3.tar.gz", hash = "sha256:d70065c42de45e15776a53216000283a2a183ae37379badb37f527a2bdfd6221"},
 ]
 future = [
     {file = "future-0.18.2.tar.gz", hash = "sha256:b1bead90b70cf6ec3f0710ae53a525360fa360d306a86583adc6bf83a4db537d"},