Update conanfile.py

Author: apolukhin

conanfile.py

@@ -97,7 +97,7 @@ def source(self):
         if known_version:
             get(self, **known_version, strip_root=True)
         else:
-            Git(self).clone('git@github.com:userver-framework/userver.git', target='.')
+            Git(self).clone('https://github.com/userver-framework/userver.git', target='.')
 
     def export_sources(self):
         known_version = (self.conan_data or {}).get("sources", {}).get(self.version)
@@ -110,7 +110,6 @@ def set_version(self):
         if self.version:
             return
 
-        # Building from userver-framework/userver
         content = load(
             self,
             os.path.join(