Feat/fix osmosis fee payment

[kerber0x]

Description and Motivation

This PR adds the osmosis pool interface to the pair contract so that it pays the the osmosis taker fee (to the community pool) in case the swap isn't executed via the osmosis frontend, which already takes the fee.

Related Issues

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Checklist:

• I have read Migaloo's contribution guidelines.
• My pull request has a sound title and description (not something vague like Update index.md)
• All existing and new tests are passing.
• I updated/added relevant documentation.
• The code is formatted properly cargo fmt --all --.
• Clippy doesn't report any issues cargo clippy -- -D warnings.
• I have regenerated the schemas if needed cargo schema.

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (418bf25) 94.42% compared to head (2af4791) 94.41%.

Files	Patch %	Lines
...-network/frontend_helper/src/reply/deposit_pair.rs	0.00%	4 Missing ⚠️
...ault-network/vault_router/src/execute/next_loan.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #269      +/-   ##
==========================================
- Coverage   94.42%   94.41%   -0.01%     
==========================================
  Files         218      218              
  Lines       24691    24687       -4     
==========================================
- Hits        23314    23309       -5     
- Misses       1377     1378       +1     

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[0xFable]

LGTM