Invalid YAML in test_cpu suite rejected by yaml-cpp 0.9.0

https://github.com/NixOS/nixpkgs/pull/560590#issuecomment-5564165433

When built against yaml-cpp version 0.9.0, `test_cpu_exec` fails:

```
[ 129/1169] [Config / inactive_color_space_precedence ] - PASSED
/build/source/tests/cpu/Config_tests.cpp:6502:
FAILED: exception thrown from config = OCIO::Config::CreateFromStream(is): "Error: Loading the OCIO profile failed. yaml-cpp: error at line 25, column 1: plain value cannot start with flow indicator character"
Segmentation fault (core dumped) ./test_cpu_exec
```

https://github.com/AcademySoftwareFoundation/OpenColorIO/blob/c52966a6677723d5bd2dbef0ccec3fed9cbc3790/tests/cpu/Config_tests.cpp#L6492-L6502

If you want to continue using funky YAML in this test, then the continued lines of the array with more than just whitespace content must be indented. Example fix (without CLA signature): #2339

tests/cpu/Config_tests.cpp の 6492-6502 行付近から始め、yaml-cpp 0.9.0 に対して test_cpu テストスイートを実行して失敗を再現します。テストで使用されている YAML fixture を調査します。test_cpu_exec が YAML parsing error や segmentation fault なしで完了すれば完了です。

索引モデルが issue の本文から書いたものです。