Use actions/setup-go@v2 in GitHub Actions. (#128)
Use actions/setup-go@v2 in GitHub Actions. (#128)

Fixes issues with addlicense requiring Go v1.16+.

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