grpc: Add endpoints in resolverWrapper.NewAddress

[arjan-bal]

Fixes: #8146

The resolver wrapper has code in the UpdateState method to convert Addresses to Endpoints, but this handling was missing in the NewAddresses API. This PR adds it.

RELEASE NOTES:

• grpc: Fix bug causing RPC failures with message "no children to pick from" when using a custom resolver that calls the deprecated NewAddress API.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.31%. Comparing base (bffa4be) to head (a82c31b).
Report is 6 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8149   +/-   ##
=======================================
  Coverage   82.30%   82.31%           
=======================================
  Files         389      392    +3     
  Lines       39125    39140   +15     
=======================================
+ Hits        32203    32218   +15     
- Misses       5594     5595    +1     
+ Partials     1328     1327    -1     

Files with missing lines	Coverage Δ
resolver_wrapper.go	91.47% <100.00%> (+7.17%)	⬆️

... and 25 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[dfawley]

Suggested change

	XXXXX PleaseIgnoreUnused
	NewAddress is deprecated:'
	NewAddress is deprecated:
	XXXXX PleaseIgnoreUnused'

That last line is there to avoid need to move the ' around. Also, let's try to keep this list sorted, so actually, please move this to right before NewSubConn is deprecated:.