v1.17.0

This is a maintenance release, but there are two important changes:

• github.com/golang-jwt/jwt/v4 has been updated because of a security issue, see CVE-2025-30204
• Minimum Go version has been raised from v1.15 to v1.21, due to an update of github.com/google/go-cmp

What's Changed

• Replace ioutil.ReadFile with os.ReadFile
• Replace ioutil.ReadAll with io.ReadAll
• upgraded static v2022.1 => v2023.1
• go fmt issue.go, metaissue.go, sprint.go
• Github Actions: Upgrade dominikh/staticcheck-action from v1.2 to v1.4
• Github Actions: Upgrade actions/setup-go from v3 to v6
• Github Actions: Upgrade actions/checkout from v3 to v5
• go mod tidy
• upgraded github.com/google/go-cmp v0.5.8 => v0.7.0
• upgraded go 1.15 => 1.21
• upgraded github.com/golang-jwt/jwt/v4 v4.4.2 => v4.5.2

All these changes have been made by @andygrunwald in #735

Full Changelog: v1.16.1...v1.17.0