Make sure that we always get the latest change log version id

Even though we are ordering by DATEEXECUTED, and the last ID should be the last executed one.
It is still possible that there are multiple entries with the same DATEEXECUTED value and the order might not be correct.
e.g. MySQL 8.0 sometimes does not return the correct order.

modules/flowable-engine-common/src/main/java/org/flowable/common/engine/impl/db/EngineSqlScriptBasedDbSchemaManager.java

@@ -199,14 +199,22 @@ protected ChangeLogVersion getChangeLogVersion() {
             }
             try (PreparedStatement statement = databaseConfiguration.getConnection()
                     .prepareStatement("select ID from " + changeLogTableName + " order by DATEEXECUTED")) {
-                String changeLogVersion = null;
+                int changeLogVersion = 0;
                 try (ResultSet resultSet = statement.executeQuery()) {
                     while (resultSet.next()) {
-                        changeLogVersion = resultSet.getString(1);
+                        String changeLogVersionId = resultSet.getString(1);
+                        int parsedChangeLogVersion = Integer.parseInt(changeLogVersionId);
+                        if (parsedChangeLogVersion > changeLogVersion) {
+                            // Even though we are ordering by DATEEXECUTED, and the last ID should be the last executed one.
+                            // It is still possible that there are multiple entries with the same DATEEXECUTED value and the order might not be correct.
+                            // e.g. MySQL 8.0 sometimes does not return the correct order.
+                            changeLogVersion = parsedChangeLogVersion;
+                        }
                     }
                 }
-                if (changeLogVersion != null) {
-                    return new ChangeLogVersion(changeLogVersion, getDbVersionForChangelogVersion(changeLogVersion));
+                if (changeLogVersion > 0) {
+                    String changeLogVersionString = String.valueOf(changeLogVersion);
+                    return new ChangeLogVersion(changeLogVersionString, getDbVersionForChangelogVersion(changeLogVersionString));
                 }
             } catch (SQLException e) {
                 throw new RuntimeException("Failed to get change log version from " + changeLogTableName, e);