feat(api): add kernel-rustls and kernel-tls features

[zeevm]

Description

This adds two features to deltalake: "kernel-rustls" and "kernel-tls".
These features are propagated to "core" to choose the kernel engine variant, default is "kernel-rustls" and users can disable default and enable "kernel-tls" instead.

Related Issue(s)

• closes Allow choosing kernel built-in engine #3334

[github-actions]

ACTION NEEDED

delta-rs follows the Conventional Commits specification for release automation.

The PR title and description are used as the merge commit message. Please update your PR title and description to match the specification.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.15%. Comparing base (8acfa3f) to head (2f55051).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3335      +/-   ##
==========================================
- Coverage   72.18%   72.15%   -0.03%     
==========================================
  Files         144      144              
  Lines       45822    45822              
  Branches    45822    45822              
==========================================
- Hits        33077    33064      -13     
- Misses      10655    10657       +2     
- Partials     2090     2101      +11     

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