feat(cubesql): TO_CHAR - support more formats, correct NULL handling … #2859

Job	Run time
Unit (Rewrite Engine)	15m 36s
Unit (Legacy)	7m 0s
Check fmt/clippy	1m 47s
Build Linux GNU 16.x x86_64-unknown-linux-gnu with Python 3.9	7m 11s
Build windows-2019 16.x with Python fallback	16m 35s
Build macos-11 x86_64-apple-darwin 16.x with Python fallback	16m 59s
Build Linux GNU 16.x aarch64-unknown-linux-gnu with Python 3.9	7m 3s
Build Linux GNU 16.x x86_64-unknown-linux-gnu with Python 3.10	7m 3s
Build macos-11 aarch64-apple-darwin 16.x with Python fallback	16m 32s
Build Linux GNU 16.x x86_64-unknown-linux-gnu with Python 3.11	7m 16s
Build Linux GNU 16.x x86_64-unknown-linux-gnu with Python 3.12	6m 56s
Build Linux GNU 16.x aarch64-unknown-linux-gnu with Python 3.12	6m 59s
Build Linux GNU 16.x x86_64-unknown-linux-gnu with Python fallback	6m 51s
Build Linux GNU 16.x aarch64-unknown-linux-gnu with Python fallback	7m 17s
Build Linux GNU 18.x x86_64-unknown-linux-gnu with Python 3.9	7m 14s
Build Linux GNU 18.x x86_64-unknown-linux-gnu with Python 3.10	7m 6s
Build Linux GNU 18.x x86_64-unknown-linux-gnu with Python 3.11	7m 8s
Build Linux GNU 18.x x86_64-unknown-linux-gnu with Python 3.12	6m 51s
Build Linux GNU 18.x x86_64-unknown-linux-gnu with Python fallback	7m 5s
	2h 46m 29s

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