chore(main): release 2.20.1 (#571)

🤖 I have created a release *beep* *boop*
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##
[2.20.1](v2.20.0...v2.20.1)
(2025-12-04)


### Bug Fixes

* Update go version to 1.25.5
([#570](#570))
([30e12e9](30e12e9))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

chore(main): release 2.20.0 (#560)

Merge pull request #552 from OctopusDeploy/release-please--branches--…

…main

chore(main): release 2.19.1

chore(main): release 2.19.0 (#532)

Merge pull request #524 from OctopusDeploy/release-please--branches--…

…main

chore(main): release 2.18.0

Merge pull request #520 from OctopusDeploy/release-please--branches--…

…main

chore(main): release 2.17.0

chore(main): release 2.16.0 (#515)

* chore(main): release 2.16.0

* chore: update install script version

Merge pull request #512 from OctopusDeploy/release-please--branches--…

…main

chore(main): release 2.15.7

Add deployment freeze override flags (#463)

* Add deployment freeze override flags

* Change flag name to singular

* Update client version

Fix deleting variables from other variable sets (#502)

* Fix deleting variables from other variable sets

* Improve comments