Elide exception compatibility to minimum transport version (#135740)

Since main (9.2) is only compatible back to 8.19 nodes, serialization
logic checking for pre 8.19 isnot necessary. This commit changes the
minimum version for exceptions added in 8.x to the minimum compatibility
version. It also changes the compatibility infra for exception
serialization to use the new supports method of TransportVersion.

Author: rjernst