databases/mongdb34: upgrade to v3.4.6

[ultima]

Summary

• Updated to 3.4.6

portlint complains about *_DEPENDS has to appear earlier.
This is a false positive, ONLY_FOR_ARCHS*(13.1.5) comes
before *_DEPENDS(13.1.6).[1]

[1] https://www.freebsd.org/doc/en/books/porters-handbook/porting-samplem.html#porting-samplem-order

PR\: 220526
Sumitted by\: Eric Camachat <[e-mail]> (maintainer)
Reviewed by\: lifanov (mentor), matthew (mentor)
Approved by\: lifanov (mentor), matthew (mentor)
Differential Revision\: https://reviews.freebsd.org/DXXXXX

Test Plan

portlint:
WARN: Makefile: for new port, make $FreeBSD$ tag in comment section empty, to make SVN happy.
WARN: Makefile: "LIB_DEPENDS" has to appear earlier.
WARN: Makefile: "TEST_DEPENDS" has to appear earlier.
0 fatal errors and 3 warnings found.

poudriere:
103i386: is only for amd64, while you are running i386 (reason: "Only supported on amd64 (i386 deprecated in v3)")
103amd64
110i386: is only for amd64, while you are running i386 (reason: "Only supported on amd64 (i386 deprecated in v3)")
110amd64
12i386: is only for amd64, while you are running i386 (reason: "Only supported on amd64 (i386 deprecated in v3)")
12amd64

Also tested on the ssl variants.

[matthew]