MFH: r551321 r553622

www/grafana7: update 7.1.3 -> 7.2.0

PR: 250054
Approved by: Robson Mantovani <robsonmantovani@gmail.com> (maintainer)
Relnotes: https://github.com/grafana/grafana/releases/tag/v7.2.0

www/grafana7: Update 7.3.0

PR: 250720
Submitted by: Robson Mantovani <robsonmantovani@gmail.com> (maintainer)

PR: 251289
Reported by: linus.sundqvist@loopia.se
Approved by: ports-secteam (blanket: build fix)