Resolve "Nitrile requirements should include linker"

What does this MR do?

Add gcc to the list of requirements for running nitrile on Linux.

Changes to public APIs

N.A.

Author's checklist (required)

• Intermediate commits compile (use git rebase -i main if not)
• Newly added code has a style consistent with the rest of the repository
• Newly added code is documented (guidelines)

Related issues

Closes #9 (closed)