Bump syn from 2.0.89 to 2.0.90 in /src/_bcrypt (#931) #1477

Job	Run time
py312 on alpine	1m 2s
pep8,packaging on linux, Rust stable	1m 24s
py312 on alpine:aarch64	55s
mypy on linux, Rust stable	1m 10s
Python 3.8 on macos-13	1m 6s
py312 on ubuntu-rolling:aarch64	59s
py38 on linux, Rust stable	1m 3s
Python 3.8 on win32	3m 55s
Python 3.8 on macos-latest	1m 4s
py39 on linux, Rust stable	42s
Python 3.13 on win32	3m 42s
Python 3.13 on macos-13	1m 26s
py310 on linux, Rust stable	56s
Python 3.8 on win64	2m 56s
py311 on linux, Rust stable	40s
Python 3.13 on macos-latest	45s
Python 3.13 on win64	3m 43s
py312 on linux, Rust stable	47s
py313 on linux, Rust stable	52s
pypy3 on linux, Rust stable	1m 0s
pypy3 on linux, Rust stable	1m 11s
py313 on linux, Rust 1.64.0	1m 33s
py313 on linux, Rust beta	1m 2s
py313 on linux, Rust nightly	1m 1s
all-green	1s
	34m 55s

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