Have dual-channel-repl use replica-announce-ip

[jdheyburn]

• Dual channel replication does not use replica-announce-ip
• This causes stale replicas in Sentinel
• This change fixes that to use replica-announce-ip if it is set

[codecov]

Codecov Report

❌ Patch coverage is 20.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.58%. Comparing base (28e5dcc) to head (28825cc).
⚠️ Report is 2 commits behind head on unstable.

Files with missing lines	Patch %	Lines
src/replication.c	20.00%	4 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           unstable    #2733      +/-   ##
============================================
- Coverage     72.61%   72.58%   -0.03%     
============================================
  Files           128      128              
  Lines         71278    71283       +5     
============================================
- Hits          51755    51742      -13     
- Misses        19523    19541      +18     

Files with missing lines	Coverage Δ
src/replication.c	85.98% <20.00%> (-0.13%)	⬇️

... and 17 files with indirect coverage changes

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