Skip SpatiaLite tests when using PROJ v6
Split off from #22138.
The released version doesn't work and the fix doesn't seem like it's going to be released anytime soon.
Note: see test issue in https://github.com/dotnet/efcore/issues/27662. If we don't add support in 7.0, then consider adding a check and throwing a nice exception. Also consider adding a check in the tests to skip these tests if 5.0 is installed.
So... our current implementation does work with SpatiaLite 5. You just need to work around the segfault by using libsqlite3 instead of e_sqlite3 (the default) or SQLCipher. I don't think we should block it at the product level.
But we can try to detect this in our tests and skip running.
MQ for test part.