dev-perl/DBD-mysql: Bump to version 4.44.0

dev-perl/DBD-mysql: Bump to version 4.44.0

- Remove embedded support
  - https://bugs.gentoo.org/644174
  - https://bugs.gentoo.org/598048
  - removal from older versions may happen later

Upstream:
- Fix for CVE-2017-10788 ( https://bugs.gentoo.org/623632 )
- Fix for CVE-2017-10789 ( https://bugs.gentoo.org/623942 )
- Enforce SSL settings for BACKRONYM and Riddle
- Fix parsing of mysql_config --libs output  in Configure
- Return INTs with ZEROFILL as strings
- Some fixes for 5.26-dot-in-inc

Bug: https://bugs.gentoo.org/598048
Bug: https://bugs.gentoo.org/623632
Bug: https://bugs.gentoo.org/623942
Bug: https://bugs.gentoo.org/644174
Package-Manager: Portage-2.3.18, Repoman-2.3.6