daemon: add a wait check for mac in ecs metadata

[l1b0k]

metadata sync is slow, have to wait it found

[codecov[bot]]

Codecov Report

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

Project coverage is 27.78%. Comparing base (01ec9b2) to head (47e38bb). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #676 +/- ## ========================================== - Coverage 27.86% 27.78% -0.09% ========================================== Files 78 78 Lines 8545 8545 ========================================== - Hits 2381 2374 -7 - Misses 5832 5838 +6 - Partials 332 333 +1 ``` | [Flag](https://app.codecov.io/gh/AliyunContainerService/terway/pull/676/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AliyunContainerService) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/AliyunContainerService/terway/pull/676/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AliyunContainerService) | `27.78% <ø> (-0.09%)` | :arrow_down: | 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=AliyunContainerService#carryforward-flags-in-the-pull-request-comment) to find out more.

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