USE RPC URL ALIASES IN foundry.toml, INSTEAD OF THE ACTUAL URLS.

[Kelechikizito]

@ciaranightingale taught that the rpc_url for our fork tests ought to be placed in the foundry.toml. However, I just learnt of a safer approach - rather than placing the actual URLs in the foundry.toml, you store the urls in your .env file and use the aliases in your foundry.toml.

This is what I mean below:

Before:

rpc_endpoints = { sepolia = "https://eth-sepolia.g.alchemy.com/v2/HWmRDrA5fpsgoqzqpebGAfg3999bo7O_", arb-sepolia = "https://arb-sepolia.g.alchemy.com/v2/31rqxYUCe278jf4Ph9BWp" }

After:

rpc_endpoints = { sepolia = "${SEPOLIA_RPC_URL}", arb-sepolia = "${ARBITRUM_SEPOLIA_RPC_URL}" }

A simple yet safer modification, I presume.
P.S: I ran source .env command before running the tests again- all passed.

[EngrPips]

Interesting.