Continue adopting std::span throughout codebase #65

Job	Run time
Code Quality Checks	59s
Build & Test (gcc-13, Release)	40s
Build & Test (clang-15, Release)	31s
Performance Regression Check	1m 32s
Build & Test (clang-15, Debug)	32s
Sanitizer Tests (ASAN + UBSAN)	38s
Build & Test (gcc-13, Debug)	42s
Build Summary	4s
	5m 38s

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