Update What's New in 3.15 anchors

[hugovk]

No description provided.

[Copilot]

Pull request overview

This PR updates “What’s New in Python 3.15” deep-link anchors in several 3.15 release announcement posts so the feature links continue to resolve correctly as the documentation section IDs evolve.

Changes:

• Update the PEP 782 link anchor to #whatsnew315-pybyteswriter across multiple 3.15 posts.
• Update the PEP 810 link anchor to #whatsnew315-lazy-imports in the 3.15.0a7 post.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
content/posts/python-3150a2/index.md	Updates PEP 782 “What’s New” anchor to the current section ID.
content/posts/python-3150-alpha-7/index.md	Updates PEP 810 and PEP 782 anchors to current section IDs.
content/posts/python-3150-alpha-6/index.md	Updates PEP 782 anchor to the current section ID.
content/posts/python-3150-alpha-5-yes-another-alpha/index.md	Updates PEP 782 anchor to the current section ID.
content/posts/python-3150-alpha-4/index.md	Updates PEP 782 anchor to the current section ID.
content/posts/python-3150-alpha-3/index.md	Updates PEP 782 anchor to the current section ID.
content/posts/python-3150-alpha-1/index.md	Updates PEP 782 anchor to the current section ID.

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