Fix old API usage for Camera3D

[asinghvi17]

cc @ranocha - this should fix the issue.

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Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 86.38%. Comparing base (111075e) to head (c7dfadc).

Files	Patch %	Lines
ext/TrixiMakieExt.jl	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## compathelper/new_version/2024-05-10-00-05-49-190-02195501927 #1940 +/- ## ================================================================================================ - Coverage 91.16% 86.38% -4.78% ================================================================================================ Files 453 453 Lines 36457 36450 -7 ================================================================================================ - Hits 33233 31486 -1747 - Misses 3224 4964 +1740 ``` | [Flag](https://app.codecov.io/gh/trixi-framework/Trixi.jl/pull/1940/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=trixi-framework) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/trixi-framework/Trixi.jl/pull/1940/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=trixi-framework) | `86.38% <0.00%> (-4.78%)` | :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=trixi-framework#carryforward-flags-in-the-pull-request-comment) to find out more.

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