[SEMVER] store SemVer in ForgejoSemVer after a database upgrade

(cherry picked from commit b7fe7cf401)

models/db/engine.go

@@ -47,6 +47,7 @@ type Engine interface {
 	Incr(column string, arg ...any) *xorm.Session
 	Insert(...any) (int64, error)
 	Iterate(any, xorm.IterFunc) error
+	IsTableExist(any) (bool, error)
 	Join(joinOperator string, tablename, condition any, args ...any) *xorm.Session
 	SQL(any, ...any) *xorm.Session
 	Where(any, ...any) *xorm.Session

models/db/engine_test.go

@@ -68,6 +68,7 @@ func TestPrimaryKeys(t *testing.T) {
 
 	whitelist := map[string]string{
 		"the_table_name_to_skip_checking": "Write a note here to explain why",
+		"forgejo_sem_ver":                 "seriously dude",
 	}
 
 	for _, bean := range beans {