Release v1.2.134

Backend image: dculus/forms-backend:v1.2.134 (promoted from the build verified on dev).

What's Changed

• fix(plugins): keep Google Sheets/Excel columns stable when form field… by @bannarisoftwares in #411
• ci: promote dev-verified builds to production via a one-click Release workflow by @bannarisoftwares in #413
• ci: build frontends once and inject environment config at deploy time by @bannarisoftwares in #414
• ci: fix fetch-frontend-build artifact name by @bannarisoftwares in #415

Full Changelog: v1.2.133...v1.2.134