lang/pypy{,3}: Update to 7.3.0

• Reorder some variables (pet portlint)
• Use ${LOCALBASE} instead of /usr/local (pet portlint)
• Remove files/patch-rpython_rlib_rvmprof_src_shared_vmprof__unix.h (upstreamed) [1]
• Remove files/patch-rpython_rlib_rvmprof_cintf.py (upstreamed) [2]
• Add files/patch-libpypy_curses__build.py to fix ncurses detection
• Add files/patch-libpypy_blake2___blake2__build.py to avoid creating a useless empty directory which would also depend on WRKDIR

Changelog:

• https://doc.pypy.org/en/latest/release-v7.3.0.html#changelog

[1] https://bitbucket.org/pypy/pypy/commits/587bebd539604208eb416ccdeb05e841db74e0aa
[2] https://bitbucket.org/pypy/pypy/commits/24a43b6a4d733b840b7ada958fbb3b129dc28103

QA:

• portlint: OK (no new issues, fix some easy ones, rest for later cleanup)
• testport: OK (poudriere: 12.1-R, amd64/i386, default options tested)
• reverse dependencies build OK

PR: 245124
Submitted by: nimaje+fbz bureaucracy.de
Approved by: koobs (mentor)
Approved by: python (koobs)
Differential Revision: https://reviews.freebsd.org/D24261