limit maxtxcount perpeer for dev

[BananaLF]

• Targeted PR against correct branch (see CONTRIBUTING.md)

• [ ] Linked to github-issue with discussion and accepted design OR link to spec that describes this work.

• [ ] Wrote tests

• [ ] Updated relevant documentation (docs/)

• [ ] Added a relevant changelog entry to the Unreleased section in CHANGELOG.md

• [ ] Reviewed Files changed in the github PR explorer

---

For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge PR #XYZ: [title]" (coding standards)

[codecov-commenter]

Codecov Report

Attention: 9 lines in your changes are missing coverage. Please review.

Comparison is base (6b97af6) 36.54% compared to head (2e27f29) 36.54%.

:exclamation: Current head 2e27f29 differs from pull request most recent head d9e0eec. Consider uploading reports for the commit d9e0eec to get more accurate results

Files	Patch %	Lines
app/config/config.go	25.00%	8 Missing and 1 partial :warning:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #3268 +/- ## ========================================== - Coverage 36.54% 36.54% -0.01% ========================================== Files 446 446 Lines 46857 46869 +12 ========================================== + Hits 17123 17126 +3 - Misses 28463 28471 +8 - Partials 1271 1272 +1 ```

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