Clang 13 and 14 CI builds added.
Clang 13 and 14 CI builds added.

offa/seasocks,mattgodbolt/seasocks,offa/seasocks,offa/seasocks,mattgodbolt/seasocks,mattgodbolt/seasocks,mattgodbolt/seasocks,offa/seasocks,mattgodbolt/seasocks,offa/seasocks,offa/seasocks,mattgodbolt/seasocks