fix: failing test because of return Integer instead of primitive int

Author: keshavdandeva

google-cloud-bigquery-jdbc/src/test/java/com/google/cloud/bigquery/jdbc/it/ITBigQueryJDBCTest.java

@@ -1508,7 +1508,7 @@ public void testDataSourceOAuthPvtKeyPath() throws SQLException, IOException {
     ds.setURL("jdbc:bigquery://https://www.googleapis.com/bigquery/v2:443;");
     ds.setOAuthType(0);
     ds.setOAuthPvtKeyPath(tempFile.toPath().toString());
-    assertEquals(0, ds.getOAuthType());
+    assertEquals(0, ds.getOAuthType().intValue());
     assertEquals(tempFile.toPath().toString(), ds.getOAuthPvtKeyPath());
   }