CHANGELOG.md in google-apis-spanner_v1-0.12.0 vs CHANGELOG.md in google-apis-spanner_v1-0.13.0

@@ -1,6 +1,10 @@
 # Release history for google-apis-spanner_v1
 
+### v0.13.0 (2021-06-17)
+
+* Regenerated from discovery document revision 20210611
+
 ### v0.12.0 (2021-06-10)
 
 * Regenerated from discovery document revision 20210603
 
 ### v0.11.0 (2021-06-03)