chore: prepare 6.3.0 release (#237)

* chore: prepare 6.3.0 release

* fix(lint): rollback to golangci-lint v1.52.2 to avoid depguard v2

---------

Co-authored-by: Pekka Nurmi <pekka.nurmi@upcloud.com>

Author: villevsv-upcloud

.github/workflows/lint.yml

@@ -11,4 +11,4 @@ jobs:
       - uses: actions/checkout@v3
       - uses: golangci/golangci-lint-action@v3
         with:
-          version: latest
+          version: v1.52.2

CHANGELOG.md

@@ -5,6 +5,8 @@ See updating [Changelog example here](https://keepachangelog.com/en/1.0.0/)
 
 ## [Unreleased]
 
+## [6.3.0]
+
 ### Added
 - ServerGroup `AntiAffinityPolicy` field to support strict, best-effort and off policies. This replaces `AntiAffinity`
 
@@ -294,7 +296,8 @@ See updating [Changelog example here](https://keepachangelog.com/en/1.0.0/)
 
 First stable release
 
-[Unreleased]: https://github.com/UpCloudLtd/upcloud-go-api/compare/v6.2.0...HEAD
+[Unreleased]: https://github.com/UpCloudLtd/upcloud-go-api/compare/v6.3.0...HEAD
+[6.3.0]: https://github.com/UpCloudLtd/upcloud-go-api/compare/v6.2.0...v6.3.0
 [6.2.0]: https://github.com/UpCloudLtd/upcloud-go-api/compare/v6.1.1...v6.2.0
 [6.1.1]: https://github.com/UpCloudLtd/upcloud-go-api/compare/v6.1.0...v6.1.1
 [6.1.0]: https://github.com/UpCloudLtd/upcloud-go-api/compare/v6.0.0...v6.1.0

upcloud/client/client.go

@@ -16,7 +16,7 @@ import (
 )
 
 const (
-	Version    string = "6.2.0"
+	Version    string = "6.3.0"
 	APIVersion string = "1.3"
 	APIBaseURL string = "https://api.upcloud.com"