Updates masp gas limit in genesis files (backport #4044)

[mergify]

Describe your changes

Updates the masp_fee_payment_gas_limit in the genesis files to match the one proposed for mainnet.

Checklist before merging

• If this PR has some consensus breaking changes, I added the corresponding breaking:: labels
  • This will require 2 reviewers to approve the changes
• If this PR requires changes to the docs or specs, a corresponding PR is opened in the namada-docs repo
  • Relevant PR if applies:
• If this PR affects services such as namada-indexer or namada-masp-indexer, a corresponding PR is opened in that repo
  • Relevant PR if applies:

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This is an automatic backport of pull request #4044 done by [Mergify](https://mergify.com).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.04%. Comparing base (73c5d2a) to head (e94b7a7).
Report is 3 commits behind head on maint-0.45.

Additional details and impacted files

@@              Coverage Diff               @@
##           maint-0.45    #4054      +/-   ##
==============================================
- Coverage       74.06%   74.04%   -0.02%     
==============================================
  Files             341      341              
  Lines          106561   106561              
==============================================
- Hits            78920    78906      -14     
- Misses          27641    27655      +14     

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