[DEPENDABOT]: Bump cryptography from 3.1.1 to 3.4.8

[dependabot]

Bumps cryptography from 3.1.1 to 3.4.8.

Changelog

Sourced from cryptography's changelog.

3.4.8 - 2021-08-24

* Updated Windows, macOS, and ``manylinux`` wheels to be compiled with
  OpenSSL 1.1.1l.
.. _v3-4-7:
3.4.7 - 2021-03-25

• Updated Windows, macOS, and manylinux wheels to be compiled with OpenSSL 1.1.1k.

.. _v3-4-6:

3.4.6 - 2021-02-16

* Updated Windows, macOS, and ``manylinux`` wheels to be compiled with
  OpenSSL 1.1.1j.
.. _v3-4-5:
3.4.5 - 2021-02-13

• Various improvements to type hints.
• Lower the minimum supported Rust version (MSRV) to >=1.41.0. This change improves compatibility with system-provided Rust on several Linux distributions.
• cryptography will be switching to a new versioning scheme with its next feature release. More information is available in our :doc:/api-stability documentation.

.. _v3-4-4:

3.4.4 - 2021-02-09

* Added a ``py.typed`` file so that ``mypy`` will know to use our type
  annotations.
* Fixed an import cycle that could be triggered by certain import sequences.
.. _v3-4-3:
3.4.3 - 2021-02-08

• Specify our supported Rust version (>=1.45.0) in our setup.py so users

... (truncated)

Commits

• 70ccc25 bump version and changelog for 3.4.8 (#6225)
• a19014a Prep for 3.4.7 release (#5933)
• 75b002a Release 346 (#5840)
• 4d77fb9 3.4.5 backports and changelog/version bump (#5827)
• 4a3018e 3.4.4 - backports, changelog, and version bumps (#5803)
• 86c9e4a version bump, changelog already done (#5791)
• 0f40cb3 [3.4] Specify an MSRV in setup.py (#5789) (#5790)
• 74a3df4 3.4.2 changelog and version bump (#5784)
• 4a66e2b [3.4] More aggressively point people at Rust version docs (#5782) (#5783)
• 843ada6 Remove setuptools_rust from install requirement (#5779) (#5781)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #360.