ctranslate2: fix CMake 4 compatibility

[Daviey]

Adds a patch file to update cmake_minimum_required from 3.7 to 3.10 in the main CMakeLists.txt files. Keeps the existing postPatch for vendored dependencies since those are git submodules that can't be easily patched with patch files.

CMake 4 doesn't support versions older than 3.5, and versions between 3.5-3.10 are deprecated.

Upstream is working on a similar fix in OpenNMT/CTranslate2#1907

Fixes: #450258

[mweinelt]

Sorry, I don't understand. The ctranslate2 package is cached for me on master, so it builds after the last patching round.

[LordGrimmauld]

The build works, anything in the interval [3.5,3.10) currently works but is on the chopping block for the next round of cmake compatibility drops:

ctranslate2> CMake Deprecation Warning at CMakeLists.txt:1 (cmake_minimum_required):
ctranslate2>   Compatibility with CMake < 3.10 will be removed from a future version of
ctranslate2>   CMake.
ctranslate2>
ctranslate2>   Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
ctranslate2>   to tell CMake that the project requires at least <min> but has been updated
ctranslate2>   to work with policies introduced by <max> or earlier.
ctranslate2>
ctranslate2>

Seeing as upstream is working on a bump to 3.10 cmake min version, we may get away with ignoring this and just doing a regular version bump later. There is no immediate need to change anything.