Implement the pylint rule PLW1514 (unspecified-encoding) #20142

Job	Run time
cargo fuzz	6m 34s
cargo test \| ubuntu-latest	7m 36s
cargo fmt	25s
cargo test \| windows-latest	9m 10s
cargo clippy	3m 17s
cargo test (wasm)	2m 2s
Determine changes	10s
benchmarks	13m 46s
cargo udeps	3m 49s
mkdocs	2m 26s
pre-commit	1m 55s
python package	1m 51s
test scripts	1m 21s
Formatter ecosystem and progress checks	0s
ecosystem	25m 49s
	1h 20m 11s

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