package/minizip-zlib: bump to version 1.2.12

Update hash of README (version and year updated with
https://github.com/madler/zlib/commit/21767c654d31d2dccdde4330529775c6c5fd5389)

https://github.com/madler/zlib/blob/v1.2.12/ChangeLog

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2 files changed