chore: port web3.js to solana-test-validator

web3.js/.travis/before_install.sh

@@ -8,6 +8,11 @@ sudo apt-get install -y openssl --allow-unauthenticated
 sudo apt-get install -y libssl-dev --allow-unauthenticated
 sudo apt-get install -y libssl1.1 --allow-unauthenticated
 clang-7 --version
+
 curl https://sh.rustup.rs -sSf | sh -s -- -y
 PATH=$HOME/.cargo/bin:$PATH
 rustup --version
+
+sh -c "$(curl -sSfL https://release.solana.com/edge/install)"
+PATH="$HOME/.local/share/solana/install/active_release/bin:$PATH"
+solana --version