Bump syn from 2.0.76 to 2.0.77 in /src/_bcrypt (#865) #1344

Job	Run time
py312 on alpine	57s
Python 3.7 on win32	2m 33s
py312 on alpine:aarch64	1m 26s
Python 3.7 on macos-13	1m 13s
Python 3.12 on win32	2m 34s
py312 on ubuntu-rolling:aarch64	1m 17s
pep8,packaging on linux, Rust stable	1m 1s
Python 3.12 on macos-13	52s
Python 3.7 on win64	4m 21s
mypy on linux, Rust stable	47s
Python 3.12 on win64	2m 31s
Python 3.12 on macos-latest	30s
py37 on linux, Rust stable	43s
py38 on linux, Rust stable	48s
py39 on linux, Rust stable	46s
py310 on linux, Rust stable	42s
py311 on linux, Rust stable	45s
py312 on linux, Rust stable	56s
py313 on linux, Rust stable	1m 9s
pypy3 on linux, Rust stable	56s
pypy3 on linux, Rust stable	1m 16s
py312 on linux, Rust 1.64.0	4m 0s
py312 on linux, Rust beta	53s
py312 on linux, Rust nightly	46s
all-green	1s
	33m 43s

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