Bump getrandom from 0.2.15 to 0.3.0 in /src/_bcrypt #1546

Job	Run time
Python 3.8 on win32	1m 51s
tests on alpine	52s
Python 3.13 on win32	1m 53s
Python 3.8 on macos-13	1m 0s
3.13 on linux, Rust stable	28s
Python 3.8 on macos-latest	57s
Python 3.13t on win32	1m 53s
3.13 on linux, Rust stable	38s
Python 3.13 on macos-13	57s
Python 3.8 on win64	1m 52s
tests on alpine:aarch64	51s
3.8 on linux, Rust stable	31s
tests on ubuntu-rolling:aarch64	47s
3.9 on linux, Rust stable	25s
Python 3.13 on win64	1m 48s
3.10 on linux, Rust stable	24s
Python 3.13t on win64	1m 53s
Python 3.13 on macos-latest	27s
3.11 on linux, Rust stable	37s
Python 3.13t on macos-13	2m 52s
Python 3.13t on macos-latest	1m 20s
3.12 on linux, Rust stable	25s
3.13 on linux, Rust stable	39s
3.13t on linux, Rust stable	39s
pypy-3.9 on linux, Rust stable	38s
pypy-3.10 on linux, Rust stable	33s
3.13 on linux, Rust 1.64.0	39s
3.13 on linux, Rust beta	39s
3.13 on linux, Rust nightly	24s
all-green	4s
	28m 56s

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