add funding.json for op retro program

[Yash094]

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PR-Codex overview

This PR adds a new section to the funding.json file, specifically introducing a retroactive funding operation for a project.

Detailed summary

• Added a new object opRetro to funding.json.
• Inside opRetro, added a projectId key with the value "0xc6052138bbdae5976fa2866f46b0537182d4126c4bb97485738d1b43f2276134".

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Latest commit: 4ce3c14

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.73%. Comparing base (f693ab8) to head (4ce3c14).
Report is 28 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #6355       +/-   ##
===========================================
- Coverage   56.83%   41.73%   -15.11%     
===========================================
  Files        1168     1167        -1     
  Lines       64793    65191      +398     
  Branches     5258     3842     -1416     
===========================================
- Hits        36824    27205     -9619     
- Misses      27242    37285    +10043     
+ Partials      727      701       -26     

Flag	Coverage Δ		*Carryforward flag
legacy_packages	65.68% <ø> (ø)		Carriedforward from f693ab8
packages	36.93% <ø> (-18.12%)	⬇️

*This pull request uses carry forward flags. Click here to find out more.

see 267 files with indirect coverage changes