refactor restic && support showing backup progress in event

[codecov-commenter]

Codecov Report

Patch coverage: 9.09% and project coverage change: -0.30 :warning:

Comparison is base (b6eaf7d) 32.54% compared to head (ba0c582) 32.25%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #201 +/- ## ========================================== - Coverage 32.54% 32.25% -0.30% ========================================== Files 41 41 Lines 6338 6344 +6 ========================================== - Hits 2063 2046 -17 - Misses 3988 4010 +22 - Partials 287 288 +1 ``` | Flag | Coverage Δ | | |---|---|---| | unittests | `32.25% <9.09%> (-0.30%)` | :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=alibaba#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://codecov.io/gh/alibaba/open-local/pull/201?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=alibaba) | Coverage Δ | | |---|---|---| | [pkg/controller/clean\_s3\_snapshot.go](https://codecov.io/gh/alibaba/open-local/pull/201?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=alibaba#diff-cGtnL2NvbnRyb2xsZXIvY2xlYW5fczNfc25hcHNob3QuZ28=) | `0.00% <0.00%> (ø)` | | | [pkg/csi/nodeutils.go](https://codecov.io/gh/alibaba/open-local/pull/201?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=alibaba#diff-cGtnL2NzaS9ub2RldXRpbHMuZ28=) | `38.69% <0.00%> (-0.37%)` | :arrow_down: | | [pkg/csi/controllerserver.go](https://codecov.io/gh/alibaba/open-local/pull/201?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=alibaba#diff-cGtnL2NzaS9jb250cm9sbGVyc2VydmVyLmdv) | `58.84% <28.57%> (-0.70%)` | :arrow_down: | ... and [1 file with indirect coverage changes](https://codecov.io/gh/alibaba/open-local/pull/201/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=alibaba) Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=alibaba). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=alibaba)

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