As suggested by yosifkit, remove the old tag 6.0-alpha1 and update the 6.0-alpha2 one with the corresponding and adequat commit hash

library/silverpeas

@@ -2,8 +2,5 @@ Maintainers: Miguel Moquillon <[email protected]> (@mmoqui)
 GitRepo: https://github.com/Silverpeas/docker-silverpeas-prod.git
 
 Tags: 6.0-alpha2, latest
-GitCommit: 35af9d88f66d84e4e26ebde6f59cabedfc66f387
-
-Tags: 6.0-alpha1
-GitCommit: b87b3bb7e28e61cd9d76262e897451e2b466d265
+GitCommit: 77c7c86d82aeee270cf23ef1272cfd95767df3c4