ppg:devel:19: bump percona-postgresql source to PG19 beta3

Track upstream beta3 instead of beta1 for the devel:19 PostgreSQL
server source and generated version strings.

Signed-off-by: Ricardo Dias <ricardo.dias@percona.com>

Author: rjd15372

root/ppg/devel/19/percona-postgresql/obs/_service

@@ -3,7 +3,7 @@
     <param name="url">https://github.com/percona/postgres.git</param>
     <param name="scm">git</param>
     <param name="revision">PSP_REL_%!{PG_MAJOR_VERSION}_STABLE</param>
-    <param name="version">%!{PG_MAJOR_VERSION}.beta1</param>
+    <param name="version">%!{PG_MAJOR_VERSION}.beta3</param>
     <param name="filename">percona-postgresql</param>
   </service>
   <service mode="buildtime" name="tar" />
@@ -12,10 +12,10 @@
     <param name="compression">gz</param>
   </service>
   <service mode="buildtime" name="set_version">
-    <param name="version">3:%!{PG_MAJOR_VERSION}.beta1</param>
+    <param name="version">3:%!{PG_MAJOR_VERSION}.beta3</param>
   </service>
   <service mode="buildtime" name="set_version">
-    <param name="version">%!{PG_MAJOR_VERSION}.beta1</param>
+    <param name="version">%!{PG_MAJOR_VERSION}.beta3</param>
     <param name="file">percona-postgresql.spec</param>
   </service>
 </services>