databases/mongodb50: Update to 5.0.1

• Add a fix for compilation on aarch64 on 14-CURRENT/clang 12.

See: https://lists.freebsd.org/archives/freebsd-ports/2021-July/000431.html

Changelog: https://docs.mongodb.com/manual/release-notes/5.0-changelog/#5.0.1-changelog

PR: 257394
Approved by: lwhsu (mentor, implicit)

(cherry picked from commit 6294ed8d0ef9fecae8cda824c1a112d951dc5273)