libinih: Update to version 58

libinih: Update to version 58

- Update from version 56 to 58
- Update of rootfile not required
- Changelog
    58
	    [oss-fuzz] fuzzing support by @0x34d in #153
	    [Fuzzing] fix harness by @0x34d in #156
	    [Fuzzing] using cifuzz for PR by @0x34d in #154
	    Specify C++11 std in meson build by @DownerCase in #157
	    Add ini_ prefix even to static names so inih can be used as an #include by
	     @benhoyt in #164
    57
	    MSVC throws C4244 by @AbsintheScripting in #142
	    Added a GetUnsigned function for getting unsigned values. by @jcormier in #147
	    meson.build: fix start-of-line_comment_prefix variable name by @ihilt in #149
	    Added GetInteger64 and GetUnsigned64 to read 64-bit integers by @natcat256
	     in #151

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>