Problem: v4.2.7 is not released

[yihuang]

👮🏻👮🏻👮🏻 !!!! REFERENCE THE PROBLEM YOUR ARE SOLVING IN THE PR TITLE AND DESCRIBE YOUR SOLUTION HERE !!!! DO NOT FORGET !!!! 👮🏻👮🏻👮🏻

PR Checklist:

• [ ] Have you read the CONTRIBUTING.md?
• [ ] Does your PR follow the C4 patch requirements?
• [ ] Have you rebased your work on top of the latest master?
• [ ] Have you checked your code compiles? (make)
• [ ] Have you included tests for any non-trivial functionality?
• [ ] Have you checked your code passes the unit tests? (make test)
• [ ] Have you checked your code formatting is correct? (go fmt)
• [ ] Have you checked your basic code style is fine? (golangci-lint run)
• [ ] If you added any dependencies, have you checked they do not contain any known vulnerabilities? (go list -json -m all | nancy sleuth)
• [ ] If your changes affect the client infrastructure, have you run the integration test?
• [ ] If your changes affect public APIs, does your PR follow the C4 evolution of public contracts?
• [ ] If your code changes public APIs, have you incremented the crate version numbers and documented your changes in the CHANGELOG.md?
• [ ] If you are contributing for the first time, please read the agreement in CONTRIBUTING.md now and add a comment to this pull request stating that your PR is in accordance with the Developer's Certificate of Origin.

Thank you for your code, it's appreciated! :)

[codecov[bot]]

Codecov Report

Merging #990 (fc29c79) into master (135a5d7) will decrease coverage by 3.02%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #990      +/-   ##
==========================================
- Coverage   32.92%   29.91%   -3.02%     
==========================================
  Files         126      125       -1     
  Lines       19988    19986       -2     
==========================================
- Hits         6582     5979     -603     
- Misses      12351    12967     +616     
+ Partials     1055     1040      -15     

Flag	Coverage Δ
integration_tests	20.54% <ø> (ø)
integration_tests_byzantine	9.60% <ø> (ø)
integration_tests_gov	9.83% <ø> (ø)
integration_tests_grpc	9.81% <ø> (ø)
integration_tests_ibc	24.74% <ø> (ø)
integration_tests_ledger	9.81% <ø> (ø)
integration_tests_slow	9.81% <ø> (ø)
integration_tests_solomachine	9.60% <ø> (ø)
integration_tests_upgrade	9.81% <ø> (ø)
unit_tests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

see 25 files with indirect coverage changes