Update module github.com/pion/mdns to v2

[Sean-Der]

Generated by renovateBot

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 78.85%. Comparing base (f0c60fe) to head (65af2d1).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #657 +/- ## ========================================== + Coverage 78.78% 78.85% +0.06% ========================================== Files 42 42 Lines 4431 4431 ========================================== + Hits 3491 3494 +3 + Misses 723 721 -2 + Partials 217 216 -1 ``` | [Flag](https://app.codecov.io/gh/pion/ice/pull/657/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pion) | Coverage Δ | | |---|---|---| | [go](https://app.codecov.io/gh/pion/ice/pull/657/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pion) | `78.85% <100.00%> (+0.06%)` | :arrow_up: | | [wasm](https://app.codecov.io/gh/pion/ice/pull/657/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pion) | `23.23% <0.00%> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pion#carryforward-flags-in-the-pull-request-comment) to find out more.

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