Update Bazel to v4.0.0. (#136)
Update Bazel to v4.0.0. (#136)

Signed-off-by: Piotr Sikora <ba6f3a1a6d7e1ecae91b31e93969cc392fbd0fdd@google.com>
proxy-wasm/proxy-wasm-cpp-host,proxy-wasm/proxy-wasm-cpp-host,proxy-wasm/proxy-wasm-cpp-host