[FSSDK-12521] chore: preparing for release v5.5.0 (#508)

* [FSSDK-12521] chore: preparing for release v5.5.0

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: remove internal tooling entries from changelog

Removed ruff linter migration and Arnica code risk warning entries
from the v5.5.0 changelog as they are internal CI/tooling changes
not relevant to SDK users.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* Update CHANGELOG.md

Co-authored-by: Muzahidul Islam <129880873+muzahidul-opti@users.noreply.github.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Muzahidul Islam <129880873+muzahidul-opti@users.noreply.github.com>

[FSSDK-12094] chore: preparing for release v5.4.0 (#473)

* [FSSDK-12094] chore: preparing for release v5.3.1

* Update changelog

* Updated 5.3.0 version with holdout

* Correct the version number

* Correct the changelog with holdout features

[FSSDK-11958] chore: Release v5.3.0 (#468)

Add changelog and update version number (#446)

Co-authored-by: Paul V Craven <paul.craven@optimizley.com>

CHANGELOG.md -> Added section for version 5.1.0 version.py -> Updated…

… version to 5.1.0 (#441)

changelog, version (#437)

[FSSDK-8583] chore: prepare for 5.0 (#431)

* bump version
* update supported version
* run unit tests on 3.12, pypy 3.8 and 3.9
* fix license

[FSSDK-9107] Update changelog and version for advanced audience targe…

…ting (#425)

* Update changelog and version for advanced audience targeting

* PR fixes

* PR fixe for version

* update date

[FSSDK-8954] chore: prep 4.1.1 (#422)

* [FSSDK-8954] docs: change full stack to feature experimentation (#420)

* [FSSDK-8954] chore: prep for 4.1.1 release (#421)

prep for 4.1.0 release