feat(php): add support for apiVersion

PiperOrigin-RevId: 631171694
diff --git a/WORKSPACE b/WORKSPACE
index 2f2e52f..dc50626 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -394,7 +394,7 @@
 ##############################################################################
 
 # PHP micro-generator
-_gapic_generator_php_version = "1.13.0"
+_gapic_generator_php_version = "1.14.0"
 
 http_archive(
     name = "gapic_generator_php",