MediaLibrary: Don't try to create the tables when the model didn't change

This should make the startup a bit faster when the database is already
setup
4 jobs for fast_table_create in 19 minutes and 12 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #291086
amd64 debian
asan-ubsan

00:19:11

passed #291083
amd64 debian
linux

00:15:22

passed #291084
win32
win32

00:18:46

passed #291085
win64
win64

00:19:02