crypto_provider: expose a way to get CSRNG data #1615

Job	Run time
Valgrind	2m 30s
Windows CMake, Debug configuration (aws-lc-rs)	3m 44s
Build+test (clang, aws-lc-rs, stable, ubuntu-latest)	2m 27s
Windows CMake, Debug configuration (ring)	1m 59s
Windows CMake, Release configuration (aws-lc-rs)	4m 54s
cargo-c	10s
Windows CMake, Release configuration (ring)	2m 30s
Build+test (clang, aws-lc-rs, beta, ubuntu-latest)	2m 30s
Clang Tidy	6s
Clippy	40s
Build+test (clang, aws-lc-rs, nightly, ubuntu-latest)	2m 29s
Clippy nightly (optional)	47s
Build+test (clang, aws-lc-rs, 1.64.0, ubuntu-latest)	4m 29s
Check for documentation errors	33s
Build+test (clang, ring, stable, ubuntu-latest)	1m 26s
ensure-header-updated	1m 21s
Build+test (clang, ring, beta, ubuntu-latest)	1m 31s
Format	13s
Build+test (clang, ring, nightly, ubuntu-latest)	1m 28s
Check minimum versions	1m 22s
Build+test (clang, ring, 1.64.0, ubuntu-latest)	3m 20s
Build+test (gcc, aws-lc-rs, stable, ubuntu-latest)	2m 8s
Miri	1m 9s
Build+test (gcc, aws-lc-rs, beta, ubuntu-latest)	2m 4s
Build+test (gcc, aws-lc-rs, nightly, ubuntu-latest)	2m 1s
Build+test (gcc, aws-lc-rs, 1.64.0, ubuntu-latest)	4m 0s
Build+test (gcc, ring, stable, ubuntu-latest)	1m 20s
Build+test (gcc, ring, beta, ubuntu-latest)	1m 20s
Build+test (gcc, ring, nightly, ubuntu-latest)	1m 20s
Build+test (gcc, ring, 1.64.0, ubuntu-latest)	3m 16s
Build+test (macos-latest, clang, aws-lc-rs, stable)	2m 40s
	1h 1m 47s

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