Add `CCZ` gate

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 99.90%. Comparing base (df23518) to head (e5060af).

Files	Patch %	Lines
src/qibojit/backends/matrices.py	66.66%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #175 +/- ## =========================================== - Coverage 100.00% 99.90% -0.10% =========================================== Files 12 12 Lines 1085 1088 +3 =========================================== + Hits 1085 1087 +2 - Misses 0 1 +1 ``` | [Flag](https://app.codecov.io/gh/qiboteam/qibojit/pull/175/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qiboteam) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/qiboteam/qibojit/pull/175/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qiboteam) | `99.90% <66.66%> (-0.10%)` | :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=qiboteam#carryforward-flags-in-the-pull-request-comment) to find out more.

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[renatomello]

What is this needed for?

https://github.com/qiboteam/qibo/pull/1280