databases/mongodb60: update to 6.0.3

• Trivial version bump.
• Mark IGNORE as it fails on runtime. Upstream has an issue on this open. (See: PR #267668)
• Add option NOAVX to support building for older CPUs. (Thanks to Borja Marcos)
• Make portmft/portlint/portclippy even more happy.

PR: 268510
Approved by: rene (mentor)
Differential Revision: https://reviews.freebsd.org/D38016