updated dependencies

[codecov[bot]]

Codecov Report

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

Comparison is base (60116ba) 81.48% compared to head (a1e50b9) 81.48%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #111 +/- ## ======================================= Coverage 81.48% 81.48% ======================================= Files 12 12 Lines 2031 2031 ======================================= Hits 1655 1655 Misses 297 297 Partials 79 79 ``` | [Flag](https://app.codecov.io/gh/go-openapi/strfmt/pull/111/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-openapi) | Coverage Δ | | |---|---|---| | [oldstable](https://app.codecov.io/gh/go-openapi/strfmt/pull/111/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-openapi) | `81.48% <ø> (ø)` | | | [stable](https://app.codecov.io/gh/go-openapi/strfmt/pull/111/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-openapi) | `81.48% <ø> (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=go-openapi#carryforward-flags-in-the-pull-request-comment) to find out more.

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