Update Docker image for Silverpeas to 6.3.2 (#15754)

Co-authored-by: silveruser <[email protected]>

library/silverpeas

@@ -2,8 +2,8 @@
 Maintainers: Miguel Moquillon <[email protected]> (@mmoqui)
 GitRepo: https://github.com/Silverpeas/docker-silverpeas-prod.git
 
-Tags: 6.3.1, latest
-GitCommit: c1fa483e14efa07680009a9f177b94072ab24827
+Tags: 6.3.2, latest
+GitCommit: 46663472900c69ea9b5aeec78fb827184c9109bf
 GitFetch: refs/heads/6.3.x
 
 Tags: 6.2.3-b1