M #-: Onecfg version updates (#4318)

* M #-: Rename 7.3.85 -> 7.4.0 onecfg migrators
* M #-: Scaffold 7.4.0 -> 7.5.80 onecfg migrators

Author: xorel

…necfg/share/migrators/7.2.0_to_7.3.85.rb …onecfg/share/migrators/7.2.0_to_7.4.0.rbsrc/onecfg/share/migrators/7.2.0_to_7.3.85.rb renamed to src/onecfg/share/migrators/7.2.0_to_7.4.0.rb src/onecfg/share/migrators/7.2.0_to_7.3.85.rb renamed to src/onecfg/share/migrators/7.2.0_to_7.4.0.rb

@@ -0,0 +1,31 @@
+# -------------------------------------------------------------------------- #
+# Copyright 2019-2026, OpenNebula Systems S.L.                               #
+#                                                                            #
+# Licensed under the OpenNebula Software License                             #
+# (the "License"); you may not use this file except in compliance with       #
+# the License. You may obtain a copy of the License as part of the software  #
+# distribution.                                                              #
+#                                                                            #
+# See https://github.com/OpenNebula/one/blob/master/LICENSE.onsla            #
+# (or copy bundled with OpenNebula in /usr/share/doc/one/).                  #
+#                                                                            #
+# Unless agreed to in writing, software distributed under the License is     #
+# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY   #
+# KIND, either express or implied. See the License for the specific language #
+# governing permissions and  limitations under the License.                  #
+# -------------------------------------------------------------------------- #
+
+# frozen_string_literal: true
+
+# Migrator
+module Migrator
+
+    # Preupgrade steps
+    def pre_up
+    end
+
+    # Upgrade steps
+    def up
+    end
+
+end