databases/mysql56-{client, server}: Update to latest release 5.6.46

Bugfix:

• Improper locking during storage engine initialization could cause a server exit.
• A query with a WHERE clause whose predicate contained a numeric value in scientific notation was not handled correctly.
• VS2019 produced compilation errors with debug compilation selected due to use of the /ZI flag. Now /Z7 is used instead.
• For MySQL Community Edition, the cipher order specified by the client was used in preference to the order on the server side, unless the server was confi
• Password masking was incomplete for SHOW PROCESSLIST and some INFORMATION_SCHEMA and Performance Schema tables.
• The -DWITH_EXAMPLE_STORAGE_ENGINE=1 CMake option was ignored but should not have been. If -DWITH_EXAMPLE_STORAGE_ENGINE=0 is given, the EXAMPLE storage e

More Info: https://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-46.html

Approved by: mmokhi (maintainer, implicit)
MFH: 2020Q1
Security: fc91f2ef-fd7b-11e9-a1c7-b499baebfeaf
Sponsored by: Netzkommune GmbH