Cast `Utf8View` to `Utf8` to support `||` from `StringViewArray` #30304

Job	Run time
Check cargo fmt	32s
cargo check	3m 38s
build with wasm-pack	2m 36s
cargo test (macos)	11m 34s
cargo test (macos-aarch64)	9m 22s
Verify MSRV (Min Supported Rust Version)	6m 12s
cargo test (win64)	40m 26s
Verify Vendored Code	58s
cargo examples (amd64)	13m 1s
cargo test datafusion-cli (amd64)	3m 47s
clippy	5m 24s
cargo doc	3m 37s
cargo test (amd64)	9m 19s
cargo test doc (amd64)	13m 54s
Run sqllogictest with Postgres runner	3m 20s
cargo test pyarrow (amd64)	2m 56s
verify benchmark results (amd64)	11m 38s
check Cargo.toml formatting	2m 47s
check configs.md is up-to-date	2m 32s
cargo test hash collisions (amd64)	13m 31s
	2h 41m 4s

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