Bump cryptography from 2.7 to 3.2

[dependabot[bot]]

Bumps cryptography from 2.7 to 3.2.

Changelog

Sourced from cryptography's changelog.

3.2 - 2020-10-25

* **SECURITY ISSUE:** Attempted to make RSA PKCS#1v1.5 decryption more constant
  time, to protect against Bleichenbacher vulnerabilities. Due to limitations
  imposed by our API, we cannot completely mitigate this vulnerability and a
  future release will contain a new API which is designed to be resilient to
  these for contexts where it is required. Credit to **Hubert Kario** for
  reporting the issue. *CVE-2020-25659*
* Support for OpenSSL 1.0.2 has been removed. Users on older version of OpenSSL
  will need to upgrade.
* Added basic support for PKCS7 signing (including SMIME) via
  :class:`~cryptography.hazmat.primitives.serialization.pkcs7.PKCS7SignatureBuilder`.
.. _v3-1-1:
3.1.1 - 2020-09-22

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

.. _v3-1:

3.1 - 2020-08-26

* **BACKWARDS INCOMPATIBLE:** Removed support for ``idna`` based
  :term:`U-label` parsing in various X.509 classes. This support was originally
  deprecated in version 2.1 and moved to an extra in 2.5.
* Deprecated OpenSSL 1.0.2 support. OpenSSL 1.0.2 is no longer supported by
  the OpenSSL project. The next version of ``cryptography`` will drop support
  for it.
* Deprecated support for Python 3.5. This version sees very little use and will
  be removed in the next release.
* ``backend`` arguments to functions are no longer required and the
  default backend will automatically be selected if no ``backend`` is provided.
* Added initial support for parsing certificates from PKCS7 files with
  :func:`~cryptography.hazmat.primitives.serialization.pkcs7.load_pem_pkcs7_certificates`
  and
  :func:`~cryptography.hazmat.primitives.serialization.pkcs7.load_der_pkcs7_certificates`
  .
* Calling ``update`` or ``update_into`` on
  :class:`~cryptography.hazmat.primitives.ciphers.CipherContext` with ``data``
  longer than 2\ :sup:`31` bytes no longer raises an ``OverflowError``. This
  also resolves the same issue in :doc:`/fernet`.
.. _v3-0:
3.0 - 2020-07-20
</tr></table>

... (truncated)

Commits

• c9e6522 3.2 release (#5508)
• 58494b4 Attempt to mitigate Bleichenbacher attacks on RSA decryption (#5507)
• cf9bd6a move blinding to init on both RSA public and private (#5506)
• bf4b962 be more verbose in the 102 deprecation notice (#5505)
• ada53e7 make the regexes for branches more strict (#5504)
• 8be1d4b Stop using @master for GH actions (#5503)
• 08a97cc Bump actions/upload-artifact from v1 to v2.2.0 (#5502)
• 52a0e44 Add a dependabot configuration to bump our github actions (#5501)
• 611c4a3 PKCS7SignatureBuilder now supports new option NoCerts when signing (#5500)
• 836a92a chunking didn't actually work (#5499)
• Additional commits viewable in compare view

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