fontconfig: regenerate font cache post-install

Fixes #24526.
Remove outdated blacklist entries

libxslt was misspelled, but more to the point we have libxml2 and
libxslt formulae in core these days so blacklisting them doesn't really
make much sense.
Remove uses of -no-cpp-precomp
ArangoDB 1.4.2

Closes #24544.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
wireshark devel 1.11.2

Closes #24541.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>