Version property in minizip.pc

With zlib 1.3.2, the Version property in minizip remained unchanged at 1.0.0. However, the exposed include path intentionally changed from ${prefix}/include/minizip to ${prefix}/include (https://github.com/madler/zlib/issues/1211#issuecomment-4153763110), forcing downstream users to modify #include statements or otherwise adjust code.

ATM users are not able to make such adjustments and to explicitly require a minizip version which implements the new pattern.

I suggest to bump the version in the pc file to indicate the breaking change, and
to simply always use the same version as the zlib (source) or
at least bump the version to then-coming zlib (source) version whenever changes are made.

This also helps to identify the sources corresponding to a particular minizip pkgconfig file.