impl(o11y): introduce url.full#12192

diegomarquezp wants to merge 3 commits intogoogleapis:maingoogleapis/google-cloud-java:mainfrom

diegomarquezp:observability/tracing-attr/url.fulldiegomarquezp/google-cloud-java:observability/tracing-attr/url.fullCopy head branch name to clipboard