Bump syn from 2.0.99 to 2.0.100 in /src/_bcrypt #1632

# to view logs

Job	Run time
tests on alpine	1m 13s
3.13 on linux, Rust stable	41s
Python 3.8 on macos-13	59s
tests on alpine:aarch64	1m 32s
Python 3.8 on macos-latest	1m 25s
3.13 on linux, Rust stable	48s
tests on ubuntu-rolling:aarch64	1m 11s
3.8 on linux, Rust stable	1m 35s
Python 3.13 on macos-13	59s
tests on ubuntu-rolling:armv7l	1m 19s
3.9 on linux, Rust stable	2m 14s
Python 3.13 on macos-latest	52s
Python 3.13t on macos-13	2m 33s
Python 3.13t on macos-latest	1m 40s
Python 3.8 on win32	3m 55s
Python 3.13 on win32	4m 58s
3.10 on linux, Rust stable	1m 10s
Python 3.13t on win32	3m 58s
3.11 on linux, Rust stable	2m 34s
Python 3.8 on win64	4m 33s
3.12 on linux, Rust stable	1m 6s
Python 3.13 on win64	4m 4s
3.13 on linux, Rust stable	1m 13s
3.13t on linux, Rust stable	1m 5s
Python 3.13t on win64	4m 30s
pypy-3.9 on linux, Rust stable	1m 28s
pypy-3.10 on linux, Rust stable	2m 9s
pypy-3.11 on linux, Rust stable	2m 18s
3.13 on linux, Rust 1.64.0	3m 47s
3.13 on linux, Rust beta	1m 15s
3.13 on linux, Rust nightly	1m 3s
all-green	2s
	1h 4m 9s

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