feat: add escape hatch to trusted senders

[gusinacio]

Add feature for configuration that allows some senders to spend up to max_amount_willing_to_lose over the balance.

[Theodus]

LGTM

[coveralls]

Pull Request Test Coverage Report for Build 13272304166

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 17 of 18 (94.44%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 79.685%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
crates/tap-agent/src/agent/sender_account.rs	9	10	90.0%

Totals
Change from base Build 13272299523:	0.1%
Covered Lines:	8033
Relevant Lines:	10081

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💛 - Coveralls