Update minimum cmake version stated in manual

[SHervoe-Hansen]

Description

Cmake versions 3.22 >= x >= 3.20 will all yield the error:

CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2746 (message):
  URL_HASH is set to

    SHA256=48986b507497f027e4fa1144a08c2d0b6d81fb476fad024956f8104448ca9ad8;DOWNLOAD_EXTRACT_TIMESTAMP;true

  but must be ALGO=value where ALGO is

    MD5|SHA1|SHA224|SHA256|SHA384|SHA512|SHA3_224|SHA3_256|SHA3_384|SHA3_512

  and value is a hex string.

[mlund]

Thanks for the PR! I'm not able to reproduce the error on my macos system with cmake 3.25.2. Could you describe how the current version fails?

[SHervoe-Hansen]

I can reproduce the error on a Linux system with cmake v. 3.20.2 (Faunus manual states minimum 3.16+) and yields the error message first stated.

I have furthermore attempted to update cmake to v. 3.22.1 and it still yields the same error stated originally.

[SHervoe-Hansen]

Okay so I upgraded cmake to 3.25.2 and now it works without errors.

I will change the PR to change the manual so that it states Faunus requires minimum cmake v. 3.25.

A rebase might be necessary.