Enable reproducible binary builds with debuginfo on Linux
Fixesrust-lang/rust#89911
This PR enables `-Cdebuginfo=2` for binary crate types in the `reproducible-build` run-make test on Linux platforms.
- Removed the `!matches!(crate_type, CrateType::Bin)` check in `diff_dir_test()`
- SHA256 hashes match: `932be0d950f4ffae62451f7b4c8391eb458a68583feb11193dd501551b6201d4`
This scenario was previously disabled due to rust-lang/rust#89911. I have verified locally on Linux (WSL) with LLVM 21 that the regression reported in that issue appears to be resolved, and the tests now pass with debug info enabled.
db8b9ecb5c