4.5.0 multi version upgrade constants (#47842)

Update the multi version upgrade constants

## Test Plan
N/A

Author: coury-clark

internal/database/migration/shared/data/cmd/generator/consts.go

@@ -8,7 +8,7 @@ import (
 
 // NOTE: This should be kept up-to-date with cmd/migrator/build.sh so that we "bake in"
 // fallback schemas everything we support migrating to. The release tool automates this upgrade, so don't touch this :)
-const maxVersionString = "4.4.0"
+const maxVersionString = "4.5.0"
 
 // MaxVersion is the highest known released version at the time the migrator was built.
 var MaxVersion = func() oobmigration.Version {