fix(blocks): return void air above height limit

[TestingPlant]

Without this, the code would panic. This can be triggered by shooting an arrow directly up.

[github-actions]

Benchmark Results for general

ray_intersection/aabb_size_0.1                     [  24.1 ns ...  24.0 ns ]      -0.42%
ray_intersection/aabb_size_1                       [  24.0 ns ...  24.0 ns ]      -0.34%
ray_intersection/aabb_size_10                      [  23.3 ns ...  23.3 ns ]      -0.09%
ray_intersection/ray_distance_1                    [   5.3 ns ...   5.3 ns ]      -0.09%
ray_intersection/ray_distance_5                    [   9.4 ns ...   9.4 ns ]      -0.26%
ray_intersection/ray_distance_20                   [   9.4 ns ...   9.4 ns ]      +0.31%
overlap/no_overlap                                 [  31.1 ns ...  30.2 ns ]      -2.77%
overlap/partial_overlap                            [  30.2 ns ...  31.0 ns ]      +2.90%
overlap/full_containment                           [  22.9 ns ...  22.8 ns ]      -0.25%
point_containment/inside                           [   5.9 ns ...   5.9 ns ]      +0.05%
point_containment/outside                          [   5.3 ns ...   5.3 ns ]      -0.02%
point_containment/boundary                         [   5.8 ns ...   5.8 ns ]      +0.08%

Comparing to 5e4648a

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 22.96%. Comparing base (5e4648a) to head (6b5f60f).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/hyperion/src/simulation/blocks/mod.rs	0.00%	4 Missing ⚠️

@@            Coverage Diff             @@
##             main     #830      +/-   ##
==========================================
- Coverage   22.96%   22.96%   -0.01%     
==========================================
  Files         159      159              
  Lines       16649    16653       +4     
  Branches      469      470       +1     
==========================================
  Hits         3824     3824              
- Misses      12727    12731       +4     
  Partials       98       98              

Files with missing lines	Coverage Δ
crates/hyperion/src/simulation/blocks/mod.rs	21.90% <0.00%> (-0.32%)	⬇️