Conan: Trailing whitespace error when patching the openscenario_api

When building the dependencies with the Ci script (15_prepare_thirdParty.sh), the patch for the openscenario_api cannot be applied (error due to trailing whitespaces in patch file). For this reason, either the openscenario_api patch files should be adapted or the whitespaces should be automatically corrected in the openscenario_api conan script ("git apply --whitespace=fix ..").