Update Rust crate once_cell to 1.19.0

This MR contains the following updates:

Package	Type	Update	Change
once_cell	dependencies	minor	1.18.0 -> 1.19.0

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Release Notes

matklad/once_cell (once_cell)

v1.19.0

Compare Source

• Use portable-atomic instead of atomic-polyfill, #​251.

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