feat: disallow dependency package name collision in forc-pkg

[kayagokalp]

Description

closes #6861

forc was allowing dependency name being the same (through the use of package alias and the declaration itself) as the project name.

The following two cases are now invalid and produces an error on the forc-pkg side before going to the compiler.

[project]
authors = ["Fuel Labs <[email protected]>"]
entry = "main.sw"
license = "Apache-2.0"
name = "lib_contract"

[dependencies]
lib_contract = { path = "../lib_contract_abi/", package = "lib_contract_abi" }

and

[project]
authors = ["Fuel Labs <[email protected]>"]
entry = "main.sw"
license = "Apache-2.0"
name = "lib_contract_abi"

[dependencies]
lib_contract = { path = "../lib_contract_abi/", package = "lib_contract_abi" }

[codspeed-hq]

CodSpeed Performance Report

Merging #6888 will not alter performance

_{Comparing kayagokalp/6861 (f5188d6) with master (c288563)}

Summary

✅ 22 untouched benchmarks

[zees-dev]

LGTM 👍