chore: prepare release v5.29.0 (#851)

Author: kangasta

CHANGELOG.md

@@ -5,6 +5,8 @@ See updating [Changelog example here](https://keepachangelog.com/en/1.0.0/)
 
 ## [Unreleased]
 
+## [5.29.0] - 2025-10-20
+
 ### Added
 
 - upcloud_managed_database_\*: Add `additional_disk_space_gib` field.
@@ -1058,7 +1060,8 @@ Updated upcloud-go-api, added build/CI scripts, and repackaged 0.1.0 as 1.0.0.
 - resource_upcloud_firewall_rule removed and replaced by resource_upcloud_firewall_rules
 - resource_upcloud_zone removed and replaced by zone and zones datasources
 
-[Unreleased]: https://github.com/UpCloudLtd/terraform-provider-upcloud/compare/v5.28.0...HEAD
+[Unreleased]: https://github.com/UpCloudLtd/terraform-provider-upcloud/compare/v5.29.0...HEAD
+[5.29.0]: https://github.com/UpCloudLtd/terraform-provider-upcloud/compare/v5.28.0...v5.29.0
 [5.28.0]: https://github.com/UpCloudLtd/terraform-provider-upcloud/compare/v5.27.0...v5.28.0
 [5.27.0]: https://github.com/UpCloudLtd/terraform-provider-upcloud/compare/v5.26.0...v5.27.0
 [5.26.0]: https://github.com/UpCloudLtd/terraform-provider-upcloud/compare/v5.25.0...v5.26.0