Bump github.com/spf13/viper from 1.15.0 to 1.20.1 in /tools

[peczenyj]

Description

Bump github.com/spf13/viper from 1.15.0 to 1.20.1 in /tools

Type of change

Update vendor

Version of Go used when building/testing:

• 1.22
• 1.23
• 1.24

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes