Helm 2026.9.11

What's Changed

• HELM-AUTOVENDOR-1: weekly automated re-vendor PR workflow (spec §3.6) by @collectrix in #261
• ci: composite helmd verify action + self-test workflow (HELM-VERIFY-ACTION-1) by @collectrix in #262
• ci(scorecard): OpenSSF Scorecard workflow + Actions pin updates via Dependabot (HELM-SCORECARD-1) by @collectrix in #263
• docs(maintenance): maintenance-mode statement, support-floor window, feature-request routing (HELM-MAINTENANCE-STATEMENT-1) by @collectrix in #264

Full Changelog: 2026.9.10...2026.9.11