enable dependabot

[codecov[bot]]

Codecov Report

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

Project coverage is 99.61%. Comparing base (c757033) to head (96b40c4). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #346 +/- ## ======================================= Coverage 99.61% 99.61% ======================================= Files 165 165 Lines 21117 21117 ======================================= Hits 21036 21036 Misses 76 76 Partials 5 5 ``` | [Flag](https://app.codecov.io/gh/pb33f/libopenapi/pull/346/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pb33f) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/pb33f/libopenapi/pull/346/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pb33f) | `99.61% <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=pb33f#carryforward-flags-in-the-pull-request-comment) to find out more.

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

---

🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests