Build(deps): Bump pyopenssl from 26.2.0 to 26.3.0

[dependabot]

Bumps pyopenssl from 26.2.0 to 26.3.0.

Changelog

Sourced from pyopenssl's changelog.

26.3.0 (2026-06-12)

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

• Dropped support for Python 3.8.
• The minimum cryptography version is now 49.0.0.
• Removed deprecated OpenSSL.crypto.X509Req, OpenSSL.crypto.dump_certificate_request, and OpenSSL.crypto.load_certificate_request. cryptography.x509 should be used instead.
• OpenSSL.SSL.Connection.set_session now raises ValueError if the Session was obtained from a Connection that was using a different Context than this one. OpenSSL requires (but does not verify) that sessions only be re-used with a compatible SSL_CTX, so this contract is now enforced.

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

• Deprecated OpenSSL.crypto.PKey.generate_key and OpenSSL.crypto.PKey.check. The key generation and loading APIs in cryptography should be used instead.
• Deprecated OpenSSL.crypto.dump_privatekey. The serialization APIs on cryptography private key types should be used instead.
• Deprecated all the mutable APIs on OpenSSL.crypto.X509: set_version, set_pubkey, sign, set_serial_number, gmtime_adj_notAfter, gmtime_adj_notBefore, set_notBefore, set_notAfter, set_issuer, and set_subject. cryptography.x509.CertificateBuilder should be used instead.
• Deprecated OpenSSL.SSL.Context.set_passwd_cb. Users should decrypt and load their private keys themselves, with cryptography's key loading APIs, and then call OpenSSL.SSL.Context.use_privatekey.
• Deprecated OpenSSL.crypto.X509Name, as well as the remaining APIs that consume or return it: OpenSSL.crypto.X509.get_issuer, OpenSSL.crypto.X509.get_subject, and OpenSSL.SSL.Context.set_client_ca_list. The APIs in cryptography.x509 should be used instead.

Changes: ^^^^^^^^

• OpenSSL.SSL.Connection.get_client_ca_list now takes an as_cryptography keyword-argument. When True is passed then cryptography.x509.Name are returned, instead of OpenSSL.crypto.X509Name. In the future, passing False (the default) will be deprecated.

Commits

• a34aa1d Prepare 26.3.0 release (#1515)
• 24db880 Deprecate X509Name and the remaining APIs that consume or return it (#1514)
• 1dc08be Add as_cryptography parameter to Connection.get_client_ca_list (#1508)
• 55653a5 Require cryptography 49, drop Python 3.8 (#1513)
• 9bad760 Remove deprecated CSR functionality (#1507)
• 98ca874 Enforce that Session is only re-used with the Context it came from (#1512)
• cbcb1da Deprecate Context.set_passwd_cb (#1511)
• 3b9d07d Deprecate all the mutable APIs on X509 (#1510)
• e096920 Deprecate PKey.generate_key, PKey.check, and dump_privatekey (#1509)
• 7079d6d Fix zizmor findings in GitHub Actions workflows (#1506)
• Additional commits viewable in compare view

[jtschladen]

@dependabot rebase

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.