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

Beginnen Sie mit tests/cpu/Config_tests.cpp um die Zeilen 6492-6502 und führen Sie die test_cpu-Testsuite mit yaml-cpp 0.9.0 aus, um den Fehler zu reproduzieren. Untersuchen Sie das von dem Test verwendete YAML-Fixture; die Aufgabe ist abgeschlossen, wenn test_cpu_exec ohne den YAML-Parsing-Fehler oder segmentation fault beendet wird.

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