Skip parsing of section attachments for logs with version less than 11

[HeEAaD]

Fixes #211 Fixes #209

This resolves the regression introduced by #204 that parsing of older logs (pre Xcode 15.3) raises the error Unexpected token parsing array of IDEActivityLogSectionAttachment.

Parse the IDEActivityLogSectionAttachments list only for activity logs with version 11 or above because this list is missing in version 10 logs.

Thanks @yohunl for the inspiration for the fix. https://github.com/MobileNativeFoundation/XCLogParser/issues/209#issuecomment-2055828404