Drop obsolete & upstreamed packages

py3-intervals: upgrade to 0.9.1

py3-sachet: bump pkgrel

py3-zxcvbn: bump pkgrel

py3-weasyprint: bump pkgrel

py3-vine: bump pkgrel

py3-unidiff: bump pkgrel

py3-stripe: bump pkgrel

py3-sshpubkeys: bump pkgrel

py3-sqlalchemy-utils: upgrade to 0.36.8

py3-pystache: bump pkgrel

py3-pyphen: bump pkgrel

py3-pgpy: upgrade to 0.5.3

py3-orderedmultidict: bump pkgrel

py3-mistletoe: bump pkgrel

py3-minio: upgrade to 7.0.1

py3-kombu: bump pkgrel

py3-iso3166: bump pkgrel

py3-infinity: upgrade to 1.5

py3-humanize: bump pkgrel