soci: don't build tests (workaround M1 macOS compilation issue) (#71808)
soci: don't build tests (workaround M1 macOS compilation issue) (#71808)

This works around a failure that occurs when compiling soci unit tests.
SOCI uses an older version of Catch, which fails to detect newer macOS
machines using the arm64 instruction set. See also:

https://github.com/SOCI/soci/issues/852
spaam/homebrew-core,mfikes/homebrew-core,zyedidia/homebrew-core,JCount/homebrew-core,makigumo/homebrew-core,chrisfinazzo/homebrew-core,cblecker/homebrew-core,nbari/homebrew-core,mbcoguno/homebrew-core,nbari/homebrew-core,nandub/homebrew-core,spaam/homebrew-core,filcab/homebrew-core,Homebrew/homebrew-core,JCount/homebrew-core,nandub/homebrew-core,filcab/homebrew-core,uyjulian/homebrew-core,lemzwerg/homebrew-core,mbcoguno/homebrew-core,adam-moss/homebrew-core,adam-moss/homebrew-core,lemzwerg/homebrew-core,chrisfinazzo/homebrew-core,Linuxbrew/homebrew-core,stgraber/homebrew-core,cblecker/homebrew-core,Linuxbrew/homebrew-core,Homebrew/homebrew-core,makigumo/homebrew-core,mbcoguno/homebrew-core,Moisan/homebrew-core,stgraber/homebrew-core,uyjulian/homebrew-core,Moisan/homebrew-core,sjackman/homebrew-core,sjackman/homebrew-core,zyedidia/homebrew-core,mfikes/homebrew-core