Fortran setup action version 1.6.3

What's Changed

• chore: support gcc14 (mac/linux), bump default intel version by @wpbonelli in #114
• Update nvidia-hpc and lfortran versions by @gha3mi in #97
• fix(oneapi): use root environment activation script by @wpbonelli in #92

Full Changelog: v1.6.2...v1.6.3