docs: fix versioning (9.0 instead of 8.1)

Author: fstagni

docs/source/AdministratorGuide/ServerInstallations/environment_variable_configuration.rst

@@ -58,7 +58,7 @@ DIRAC_NO_CFG
   If set to anything, cfg files on the command line must be passed to the command using the --cfg option.
 
 DIRAC_USE_JSON_ENCODE
-  Controls the transition to JSON serialization. See the information in :ref:`jsonSerialization` page (default=Yes since 8.1)
+  Controls the transition to JSON serialization (default=Yes since 9.0)
 
 DIRAC_ROOT_PATH
   If set, overwrites the value of DIRAC.rootPath.

src/DIRAC/RequestManagementSystem/private/RequestValidator.py

@@ -282,11 +282,9 @@ def setAndCheckRequestOwner(request, remoteCredentials):
             ownershipCheck = request.OwnerDN
         if not hasattr(request, "OwnerDN") and hasattr(
             request, "Owner"
-        ):  # Requests created by v8.1 client for v8.1 servers
+        ):  # Requests created by v9 client for v9 servers
             ownershipCheck = request.Owner
-        if hasattr(request, "OwnerDN") and hasattr(
-            request, "Owner"
-        ):  # Requests created by v8.0 client for v8.1 servers
+        if hasattr(request, "OwnerDN") and hasattr(request, "Owner"):  # Requests created by v8.0 client for v9 servers
             ownershipCheck = request.Owner
         # ##