gov,types: fix tests

[Raneet10]

Description

This PR fixes the tests TestParseSubmitProposalFlags,TestValidateBasic and TestNewValidator.

Changes

• Bugfix (non-breaking change that solves an issue)
• Hotfix (change that solves an urgent issue, and requires immediate attention)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)
• Changes only for a subset of nodes

Checklist

• I have added at least 2 reviewer or the whole pos-v1 team
• I have added sufficient documentation in code
• I will be resolving comments - if any - by pushing each fix in a separate commit and linking the commit hash in the comment reply

Testing

• I have added unit tests
• I have added tests to CI
• I have tested this code manually on local environment
• I have tested this code manually on remote devnet using express-cli
• I have tested this code manually on mumbai
• I have created new e2e tests into express-cli

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (vaibhav/Milestone@a5545a1). Click here to learn what that means.
Patch has no changes to coverable lines.

❗ Current head efbf823 differs from pull request most recent head 2fd20a2. Consider uploading reports for the commit 2fd20a2 to get more accurate results

Additional details and impacted files

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##             vaibhav/Milestone    #1000   +/-   ##
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  Files                        ?       53           
  Lines                        ?     5840           
  Branches                     ?        0           
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  Hits                         ?     4467           
  Misses                       ?     1116           
  Partials                     ?      257           

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