Update Rust crate derive_builder to 0.20

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
derive_builder	dependencies	minor	0.13 -> 0.20

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Release Notes

colin-kiegel/rust-derive-builder (derive_builder)

v0.20.0

Compare Source

• Bump syn to version 2 #​308
• Bump darling to version 0.20.6 #​308
• BREAKING CHANGE: Remove support for field(type = "...") as syn no longer allows this. #​308
• Allow omitting quotes on builder(default = ...) expressions #​308

v0.13.1

Compare Source

• Accept field(ty = "...") as an alias for field(type = "...") in preparation for moving to syn 2.0, which doesn't allow the use of keywords as meta item paths. #​306

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