Echo 5 support is located in `echo-contrib/v5` series
Echo 5 support was introduced in this repository with the v0.50.0 release. However, this also means that users who are still on Echo 4 and run go get -u ./... will inadvertently pull in Echo 5, which they neither want nor need at this time.
For now we will release Echo 5 support as v5 major version.
go get github.com/labstack/echo-contrib/v5NB: v0.50.0 will be retracted in v0.x.y series and v0+ will only support Echo 4.
Apologies for the inconvenience.
Relates to #142