Bump pyopenssl from 19.1.0 to 20.0.0

[dependabot]

Bumps pyopenssl from 19.1.0 to 20.0.0.

Changelog

Sourced from pyopenssl's changelog.

20.0.0 (2020-11-27)

Backward-incompatible changes: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

• The minimum cryptography version is now 3.2.
• Remove deprecated OpenSSL.tsafe module.
• Removed deprecated OpenSSL.SSL.Context.set_npn_advertise_callback, OpenSSL.SSL.Context.set_npn_select_callback, and OpenSSL.SSL.Connection.get_next_proto_negotiated.
• Drop support for Python 3.4
• Drop support for OpenSSL 1.0.1 and 1.0.2

Deprecations: ^^^^^^^^^^^^^

• Deprecated OpenSSL.crypto.loads_pkcs7 and OpenSSL.crypto.loads_pkcs12.

Changes: ^^^^^^^^

• Added a new optional chain parameter to OpenSSL.crypto.X509StoreContext() where additional untrusted certificates can be specified to help chain building. [#948](https://github.com/pyca/pyopenssl/issues/948) <https://github.com/pyca/pyopenssl/pull/948>_
• Added OpenSSL.crypto.X509Store.load_locations to set trusted certificate file bundles and/or directories for verification. [#943](https://github.com/pyca/pyopenssl/issues/943) <https://github.com/pyca/pyopenssl/pull/943>_
• Added Context.set_keylog_callback to log key material. [#910](https://github.com/pyca/pyopenssl/issues/910) <https://github.com/pyca/pyopenssl/pull/910>_
• Added OpenSSL.SSL.Connection.get_verified_chain to retrieve the verified certificate chain of the peer. [#894](https://github.com/pyca/pyopenssl/issues/894) <https://github.com/pyca/pyopenssl/pull/894>_.
• Make verification callback optional in Context.set_verify. If omitted, OpenSSL's default verification is used. [#933](https://github.com/pyca/pyopenssl/issues/933) <https://github.com/pyca/pyopenssl/pull/933>_
• Fixed a bug that could truncate or cause a zero-length key error due to a null byte in private key passphrase in OpenSSL.crypto.load_privatekey and OpenSSL.crypto.dump_privatekey. [#947](https://github.com/pyca/pyopenssl/issues/947) <https://github.com/pyca/pyopenssl/pull/947>_

Commits

• de2dbf7 20.0.0 before 2020 is even over (#968)
• 09b5d70 fix a memleak (#967)
• 3562df8 Keep reference to SSL verify_call in Connection object (#956)
• f3667e9 Remove leakcheck (#965)
• 313c1dd Added dependabot for GHA (#961)
• 52341e8 Migrate CI to GHA (#960)
• e93aea7 Fix spelling of set in set_verify docstring (#959)
• 55f2c2b Stop testing py35 with cryptography master (#958)
• 5aaef1e Fix typo in debug command output (#957)
• 124a013 Drop CI for OpenSSL 1.0.2 (#953)
• Additional commits viewable in compare view

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[dependabot]

The following labels could not be found: dependencies, backport 3.x.

[dependabot]

Superseded by #75.