Update MAT requirement from 0.10, 0.11 to 0.10, 0.11, 0.12 in the all-julia-packages group across 1 directory

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Updates the requirements on MAT to permit the latest version.
Updates MAT to 0.12.0

Release notes

Sourced from MAT's releases.

v0.12.0

MAT v0.12.0

Diff since v0.11.5

Breaking changes

• Read-write behavior of Char arrays has been changed. This was ill-defined up to now
• Empty strings are now returned as String[] instead of ""
• Strings in arrays are no longer trimmed automatically to keep read-write behavior consistent.

New features

• Better Char array support, including unicode

Fixes:

• mat v7.3 (HDF5 format) performance issue fixed

Merged pull requests:

• RW for char arrays with unicode support (#234) (@​foreverallama)
• avoid HDF5.name when possible (#238) (@​matthijscox)

Closed issues:

• Incremental reading of complex matrix from MatlabHDF5File (#76)
• Function handle support (#221)
• HDF5 slow reading performance (#237)

Commits

• See full diff in compare view