Update dependencies to specific revisions and tags in Cargo.toml files

[itsyaasir]

Description of change

This PR pins the iota dependencies to the testnet revision.

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Type of change

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• Bug fix (a non-breaking change which fixes an issue)
• Enhancement (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Fix

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Change checklist

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• I have followed the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• 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

[UMR1352]

@itsyaasir shouldn't we use a proper release for iota-sdk? Like 0.7.2-rc?

[itsyaasir]

@itsyaasir shouldn't we use a proper release for iota-sdk? Like 0.7.2-rc?

Yeah, that would be the ideal way but unfortunately the tag is still using ssh dependency which is bringing problem with authentication, I will be tracking this and will update with the appropriate tag when the ssh deps are removed.