Merge pull request #5363 from thaJeztah/rm_go_reportcard

README: remove Go Report Card badge

Author: cyphar

README.md

@@ -1,6 +1,5 @@
 # runc
 
-[![Go Report Card](https://goreportcard.com/badge/github.com/opencontainers/runc)](https://goreportcard.com/report/github.com/opencontainers/runc)
 [![Go Reference](https://pkg.go.dev/badge/github.com/opencontainers/runc.svg)](https://pkg.go.dev/github.com/opencontainers/runc)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/588/badge)](https://bestpractices.coreinfrastructure.org/projects/588)
 [![gha/validate](https://github.com/opencontainers/runc/workflows/validate/badge.svg)](https://github.com/opencontainers/runc/actions?query=workflow%3Avalidate)