Fix warning: "The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' …

…is set to 9.0, but the range of supported deployment target versions is 12.0 to 17.0.99. (in target 'visp_tt' from project 'VISP')".

Fix error: "ERROR: Command '['xcodebuild', 'IPHONEOS_DEPLOYMENT_TARGET=12.0', 'ARCHS=armv7', '-sdk', 'iphoneos', '-configuration', 'Release', '-parallelizeTargets', '-jobs', '3', '-target', 'ALL_BUILD', 'build']' returned non-zero exit status 65.".

.github/workflows/ios.yml

@@ -40,4 +40,6 @@ jobs:
       run: |
         mkdir build
         cd build
-        python ../platforms/ios/build_framework.py ios
+      # cf: doc\tutorial\ios\tutorial-install-iOS.dox
+        python ../platforms/ios/build_framework.py ios --iphoneos_deployment_target 12.0 --iphoneos_archs arm64 \
+                --build_only_specified_archs True