CPMAddPackage -> CPMFindPackage

I hope this change will speed up the compilation (re-use local installed source code)

Author: alex-w

plugins/SkyCultureMaker/CMakeLists.txt

@@ -26,7 +26,7 @@ IF(SCM_SHOULD_ENABLE_CONVERTER AND NOT IS_QT_5 AND NOT IS_WIN_ARM64)
   MESSAGE(STATUS "Sky Culture Converter will be enabled.")
 
   # download https://github.com/Stellarium/stellarium-skyculture-converter
-  CPMAddPackage(
+  CPMFindPackage(
     NAME              StellariumSkyCultureConverter
     GITHUB_REPOSITORY Stellarium/stellarium-skyculture-converter
     GIT_TAG           master
@@ -35,7 +35,7 @@ IF(SCM_SHOULD_ENABLE_CONVERTER AND NOT IS_QT_5 AND NOT IS_WIN_ARM64)
   )
 
   # download https://github.com/selmf/unarr for archives
-  CPMAddPackage(
+  CPMFindPackage(
     NAME              unarr
     GITHUB_REPOSITORY selmf/unarr
     GIT_TAG           v1.1.1
@@ -71,4 +71,4 @@ ENDIF()
 ADD_DEFINITIONS(-DSKYCULTUREMAKER_PLUGIN_VERSION="${SCM_VERSION}")
 ADD_DEFINITIONS(-DSKYCULTUREMAKER_PLUGIN_LICENSE="GNU GPLv2 or later")
 
-ADD_SUBDIRECTORY( src )
+ADD_SUBDIRECTORY( src )