* chore: upgrade Go toolchain to 1.25 and bump helm to v3.20.2
Upgrades Go from 1.24 to 1.25 in go.mod and CI workflow to fix
golangci-lint compatibility. Includes helm.sh/helm/v3 bump to v3.20.2.
Supersedes #678.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix(ci): upgrade golangci-lint-action to v7 for Go 1.25 support
Action v4 installs golangci-lint v1.x which was built with Go 1.24
and refuses to lint Go 1.25 code. Action v7 uses golangci-lint v2.x
built with Go 1.25+.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: resolve golangci-lint v2 warnings
Handle Body.Close error returns and remove redundant embedded field
selector to satisfy stricter golangci-lint v2 defaults.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>