fix: use emoticons in changelog

[gemmadanks]

Fixes key in release-please config and prevents pre-commit hook pretty-format-json converting emoticons into C/C++/Java source code.

Prerequisites checklist

Please check each of the following before merging:

• I have updated any relevant documentation
• I have added unit tests for any new code
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• I will squash my commits and, where needed, edit the commit messages to make them more informative follow the conventional commits format
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• Documentation update
• Bug fix
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[Copilot]

Pull Request Overview

This PR fixes the release-please configuration to properly use emoticons in changelog generation. The changes address issues where emoticons were being converted to unicode escape sequences by the pre-commit hook and corrects the configuration key name.

• Updates release-please configuration to use proper key name and readable emoticons
• Prevents pre-commit hook from converting emoticons to unicode escape sequences
• Updates existing changelog to use emoji format

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
release-please-config.json	Fixes key name from "changelog-types" to "changelog-sections" and converts unicode escape sequences to proper emoticons
CHANGELOG.md	Updates existing changelog section header to use emoji format
.pre-commit-config.yaml	Adds --no-ensure-ascii flag to prevent emoticon conversion

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