Assuming that the Wasm app was given necessary capabilities (in this case, access to /dev/ dir), ensure that it is possible to properly open misc devices such as:

• /dev/random
• /dev/urandom
• /dev/zero
• /dev/null

Relevant PRs that spotted and/or fixed the bug:

• enable wasi-c by default for releases #396
• Fixes CraneStation/wasmtime#396 CraneStation/wasi-common#131