fix: start timeout watchers for xmrtaker when restarting ongoing swap

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.32 :warning:

Comparison is base (998347d) 58.76% compared to head (b86fa03) 58.44%.

:exclamation: Current head b86fa03 differs from pull request most recent head 4e9d0f1. Consider uploading reports for the commit 4e9d0f1 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #456 +/- ## ========================================== - Coverage 58.76% 58.44% -0.32% ========================================== Files 124 123 -1 Lines 11620 11579 -41 ========================================== - Hits 6828 6767 -61 - Misses 4068 4092 +24 + Partials 724 720 -4 ``` | [Impacted Files](https://app.codecov.io/gh/AthanorLabs/atomic-swap/pull/456?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | Coverage Δ | | |---|---|---| | [protocol/xmrtaker/message\_handler.go](https://app.codecov.io/gh/AthanorLabs/atomic-swap/pull/456?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-cHJvdG9jb2wveG1ydGFrZXIvbWVzc2FnZV9oYW5kbGVyLmdv) | `72.11% <100.00%> (-0.53%)` | :arrow_down: | | [protocol/xmrtaker/swap\_state.go](https://app.codecov.io/gh/AthanorLabs/atomic-swap/pull/456?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-cHJvdG9jb2wveG1ydGFrZXIvc3dhcF9zdGF0ZS5nbw==) | `67.32% <100.00%> (-1.40%)` | :arrow_down: | ... and [10 files with indirect coverage changes](https://app.codecov.io/gh/AthanorLabs/atomic-swap/pull/456/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None)

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