refactor: remove MixOptions and use StandaloneOptions only (#3893) #6

Job	Run time
Check typos and docs	5s
Check License Header	1m 18s
Rustfmt	1m 17s
Check (windows-latest)	13m 55s
Build GreptimeDB binaries (ubuntu-20.04)	13m 0s
Check (ubuntu-20.04)	8m 34s
Toml Check	2m 54s
Clippy	9m 6s
coverage	1s
Sqlness Test (ubuntu-20.04)	2m 17s
Sqlness Test with Kafka Wal (ubuntu-20.04)	2m 51s
Unstable Fuzz Test (unstable_fuzz_create_table_standalone)	15m 51s
Fuzz Test (fuzz_create_table)	9m 50s
Fuzz Test (fuzz_alter_table)	9m 49s
Fuzz Test (fuzz_create_database)	9m 32s
Fuzz Test (fuzz_create_logical_table)	9m 30s
Fuzz Test (fuzz_alter_logical_table)	10m 4s
Fuzz Test (fuzz_insert)	9m 49s
Fuzz Test (fuzz_insert_logical_table)	9m 26s
	2h 19m 9s

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