refactor: Re-arrange Driver tests

Change ApplyMigration to be subtests instead of table-driven tests
because it's easier to target specific tests with the "-run" flag rather
find the nth test that didn't work. There's like 20 tests.

drivers/mysql/mysql_test.go

@@ -4,9 +4,9 @@ import (
 	"testing"
 
 	"github.com/rafaelespinoza/godfish/drivers/mysql"
-	"github.com/rafaelespinoza/godfish/internal"
+	"github.com/rafaelespinoza/godfish/internal/test"
 )
 
 func Test(t *testing.T) {
-	internal.RunDriverTests(t, mysql.NewDriver())
+	test.RunDriverTests(t, mysql.NewDriver())
 }

drivers/postgres/postgres_test.go

@@ -4,9 +4,9 @@ import (
 	"testing"
 
 	"github.com/rafaelespinoza/godfish/drivers/postgres"
-	"github.com/rafaelespinoza/godfish/internal"
+	"github.com/rafaelespinoza/godfish/internal/test"
 )
 
 func Test(t *testing.T) {
-	internal.RunDriverTests(t, postgres.NewDriver())
+	test.RunDriverTests(t, postgres.NewDriver())
 }

drivers/sqlite3/sqlite3_test.go

@@ -4,9 +4,9 @@ import (
 	"testing"
 
 	"github.com/rafaelespinoza/godfish/drivers/sqlite3"
-	"github.com/rafaelespinoza/godfish/internal"
+	"github.com/rafaelespinoza/godfish/internal/test"
 )
 
 func Test(t *testing.T) {
-	internal.RunDriverTests(t, sqlite3.NewDriver())
+	test.RunDriverTests(t, sqlite3.NewDriver())
 }

internal/stub/driver_test.go

@@ -3,11 +3,10 @@ package stub_test
 import (
 	"testing"
 
-	"github.com/rafaelespinoza/godfish/internal"
 	"github.com/rafaelespinoza/godfish/internal/stub"
+	"github.com/rafaelespinoza/godfish/internal/test"
 )
 
 func Test(t *testing.T) {
-	var driver stub.Driver
-	internal.RunDriverTests(t, &driver)
+	test.RunDriverTests(t, &stub.Driver{})
 }