Guard calling is_nan on scalar value on dtype being a float (#8593) #32533

Job	Run time
Python (lint)	40s
validate-workflow-yaml	8s
lint-toml	9s
Python (test)	2m 18s
C API test build	38s
Rust build (all-features)	2m 38s
License Check and Audit Check (advisories)	52s
Check build with minimal dependencies	2m 35s
Rust build (default features)	2m 38s
Check generated source files are up to date	43s
WASM integration smoke test	5m 33s
Rust build (with tokio dispatcher)	48s
Java	3m 46s
Rust (lint, no default)	2m 27s
C/C++ (lint)	8s
Rust build (wasm32 with default features)	54s
C++ build	1m 20s
License Check and Audit Check (bans licenses sources)	50s
DuckDB libraries available in R2	3s
Mirror DuckDB to R2	0s
Rust (lint)	0s
SQL logic tests	0s
Rust tests (${{ matrix.os }})	0s
Rust (docs)	0s
	29m 8s

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