test: forge test should be all green and exclude tests that require anvil

[arthurgousset]

Description

1. adds a Foundry profile in foundry.toml ([profile.devchain]) that defines custom configs when passing the FOUNDRY_PROFILE=devchain env variable in Foundry commands (e.g. FOUNDRY_PROFILE=devchain forge test)
2. adds a config in the default Foundry profile ([profile.default]) to exclude all files in **/test-sol/devchain/** when running forge test

Other changes

1. creates new test-sol/devchain/ directory.
2. moves e2e/ directory to devchain/ directory.
3. renames migration test to Migration.t.sol (formerly Integration.t.sol), and moves it to devchain/migration directory.

Tested

Tested locally and on CI.

1. forge test is all green ✅

   $ forge test

2. forge test in devchain/ directory is all green ✅

   # with anvil instance running locally
   FOUNDRY_PROFILE=devchain forge test -vvv \
   --match-path "test-sol/devchain/migration/*" \
   --fork-url $ANVIL_RPC_URL

Related issues

• Fixes forge test should be all green and exclude e2e tests that require a devchain #11106

Backwards compatibility

Brief explanation of why these changes are/are not backwards compatible.

Documentation

Yes, copy-pasted from test-sol/devchain/README.md:

All tests in this directory are intended to be run against an anvil devchain. To use forge commands in this directory, consume the [profile.devchain] defined in foundry.toml by passing the profile as an environment variable, and use the --fork-url flag to point to the anvil devchain.

For example:

1. Start a local devchain (check latest scripts in package.json in
   case this command is out-of-date):

   ```sh
   $ yarn anvil-devchain:start-L1
   
   Waiting Anvil to launch on 8546...
   
   
                            _   _
                           (_) | |
     __ _   _ __   __   __  _  | |
    / _` | | '_ \  \ \ / / | | | |
   | (_| | | | | |  \ V /  | | | |
    \__,_| |_| |_|   \_/   |_| |_|
   
   0.2.0 (f625d0f 2024-04-02T00:16:42.824772000Z)
   https://github.com/foundry-rs/foundry
   
   # ...
   Listening on 127.0.0.1:8546
   ```
   

2. Run all tests in this directory against the anvil devchain serving at $ANVIL_RPC_URL:

   $ FOUNDRY_PROFILE=devchain forge test -vvv \
   --match-path "test-sol/devchain/e2e/*" \
   --fork-url $ANVIL_RPC_URL

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