Move CLI integration tests inside the `miden-cli` crate

[tomyrd]

What should be done?

Right now we need to build the binary inside the integration-test makefile rule. This is because the tests inside cli_tests.rs use the binary. We should move the CLI tests that use assert_cmd inside the miden-cli crate so that the tests crate doesn't require to build the binary.

How should it be done?

Internal crate tests should be created inside miden-cli that use the assert_cmd to directly use the binary. These tests are already written iniside tests/integration/cli_tests.rs.

When is this task done?

The task is done when:

• we can run the integration tests inside the tests crate without building the cli before
• we can run internal tests for miden-cli that use assert_cmd

Additional context

Comment where we talk about the temporary fix of building the binary before the integration tests.

[tomyrd]

Per this comment we should try to remove the integration feature if possible

[tomyrd]

closed by #413