MFH: r542135

net-mgmt/prometheus2: Update to 2.19.2

Changes: https://github.com/prometheus/prometheus/releases/tag/v2.19.2
PR: 247937
Submitted by: David O'Rourke <dor.bsd@xm0.uk> (maintainer)

Approved by: ports-secteam blanket (bugfix release)