Change awk regex command to capture the coordinate address properly

[michelle-yooh]

Description

While running A3+ benchmarking using XPK, I noted "Failed to recognize coordinator address" happening. Upon investigating, I noted that this regex is not capturing the address properly. An example log message looks like:

Server: 34.118.224.10 Address: 34.118.224.10#53 ...

and the "Address" part is in the middle, rather than beginning, which is captured by ^. Thus we need to remove this.

FIXES: b/381196280

Tests

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commands to reproduce.

Checklist

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