Update mkfontscale to version 1.2.3 / rev 15 via SR 1154485
https://build.opensuse.org/request/show/1154485
by user sndirsch + anag+factory
- Update to version 1.2.3
* configure: Use pkg-config to find zlib
* configure: Use AC_SYS_LARGEFILE to enable large file support
* gitlab CI: stop requiring Signed-off-by in commits
* Remove "All rights reserved" from Oracle copyright notices
* Convert to X.Org standard code style
* doDirectory: add missing check for malloc() returning NULL
* mkfontscale.c: handle -Wshadow warnings from gcc
* ident.c: clear -Wdeclaration-after-statement warning
* Variable scope reductions as recommended by cppcheck
* Resolve some -Wsign-conversion warnings from clang
* Fix -Wimplicit-float-conversion warnings from clang
* configure: Move check for zlib into its own section
* Address a UBSan warning about int left shift overflow