The transformation on the targetHostAndPort of http-outgoing-metrics makes it hard to connect to tracing

[FrankChen021]

When jumping from the outgoing metrics to tracing, the expression is like:

appName = 'stable' AND tags.net.peer = 'stable' AND tags.http.method = 'POST' AND url = '/v1' AND status = '200' AND name= 'httpclient' AND kind = 'CLIENT' 

However, in the tracing spans, the tags.net.peer remains the un-transformed data, this makes above query fail to search data.