Add events for nonce updates

[shahthepro]

Emit events whenever nonce is incremented or marked as processed

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 44.54%. Comparing base (989e8b0) to head (c9ec89a).
⚠️ Report is 2 commits behind head on shah/cross-chain-strategy-cctpv2.

Additional details and impacted files

@@                         Coverage Diff                          @@
##           shah/cross-chain-strategy-cctpv2    #2755      +/-   ##
====================================================================
+ Coverage                             44.51%   44.54%   +0.02%     
====================================================================
  Files                                   133      133              
  Lines                                  6142     6145       +3     
  Branches                               1643     1643              
====================================================================
+ Hits                                   2734     2737       +3     
  Misses                                 3404     3404              
  Partials                                  4        4              

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[sparrowDom]

LGTM