Update dependency pem to v23

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Confidence
pem (changelog)	==21.2.0 → ==23.1.0

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Release Notes

hynek/pem (pem)

v23.1.0

Compare Source

Removed

• Support for Python 2.7, 3.5, and 3.6 has been dropped.

Added

• Support for RFC 4880 OpenPGP private & public keys: pem.OpenPGPPublicKey and pem.OpenPGPPrivateKey.
  #​72
• Support for intra-payload headers like the ones used in OpenPGP keys using the meta_headers property.
  #​75
• pem.parse_file() now accepts also pathlib.Path objects.
• pem.parse() now also accepts str.
• Added text_payload, bytes_payload and decoded_payload properties to all PEM objects that allow to directly access the payload without the envelope and possible headers.
  #​74

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[gemini-code-assist]

Code Review

This pull request updates the pem dependency to version 23.1.0 in the requirements file. A review comment correctly identifies that the updated version constraints are now redundant and potentially problematic for older Python versions, suggesting a simplified single-line requirement for better compatibility and maintenance.

[gemini-code-assist]

These two lines are now redundant and can be simplified. More importantly, the condition python_version < '3.8' is problematic with pem==23.1.0 because this version of pem dropped support for Python versions older than 3.7. This would cause installation to fail on Python 3.6, for example.

Since both lines now specify the same version of pem, they can be combined into a single requirement without any version specifiers. pip will handle Python version compatibility based on the package metadata, which is the standard practice.

pem==23.1.0