build: Bump github.com/prometheus/client_golang from 1.10.0 to 1.12.1#34

dependabot[bot] wants to merge 1 commit intomainbt90/syncthing:mainfrom

dependabot/go_modules/github.com/prometheus/client_golang-1.12.1bt90/syncthing:dependabot/go_modules/github.com/prometheus/client_golang-1.12.1Copy head branch name to clipboard