chore(deps): update dependency validation to 2.6.68

| datasource | package    | from   | to     |
| ---------- | ---------- | ------ | ------ |
| nuget      | Validation | 2.5.51 | 2.6.68 |

Author: renovate[bot]

Directory.Packages.props

@@ -10,7 +10,7 @@
 
   <ItemGroup>
     <PackageVersion Include="IKVM" Version="8.10.3" />
-    <PackageVersion Include="Validation" Version="2.5.51" />
+    <PackageVersion Include="Validation" Version="2.6.68" />
   </ItemGroup>
 
   <ItemGroup>

src/VisualOn.FeatureIDE/packages.lock.json

@@ -52,9 +52,9 @@
       },
       "Validation": {
         "type": "Direct",
-        "requested": "[2.5.51, )",
-        "resolved": "2.5.51",
-        "contentHash": "g/Aug7PVWaenlJ0QUyt/mEetngkQNsMCuNeRVXbcJED1nZS7JcK+GTU4kz3jcQ7bFuKfi8PF4ExXH7XSFNuSLQ=="
+        "requested": "[2.6.68, )",
+        "resolved": "2.6.68",
+        "contentHash": "5mZ+aXsYQnr3Wxz5O2tmbgPaa5kn9R+ZlfnPyGBogXI2sh4uTiHtvU++N4bURtn9vmDYIu2Zu323K9hFz9poXQ=="
       },
       "IKVM.ByteCode": {
         "type": "Transitive",
@@ -324,9 +324,9 @@
       },
       "Validation": {
         "type": "Direct",
-        "requested": "[2.5.51, )",
-        "resolved": "2.5.51",
-        "contentHash": "g/Aug7PVWaenlJ0QUyt/mEetngkQNsMCuNeRVXbcJED1nZS7JcK+GTU4kz3jcQ7bFuKfi8PF4ExXH7XSFNuSLQ=="
+        "requested": "[2.6.68, )",
+        "resolved": "2.6.68",
+        "contentHash": "5mZ+aXsYQnr3Wxz5O2tmbgPaa5kn9R+ZlfnPyGBogXI2sh4uTiHtvU++N4bURtn9vmDYIu2Zu323K9hFz9poXQ=="
       },
       "IKVM.ByteCode": {
         "type": "Transitive",
@@ -572,9 +572,9 @@
       },
       "Validation": {
         "type": "Direct",
-        "requested": "[2.5.51, )",
-        "resolved": "2.5.51",
-        "contentHash": "g/Aug7PVWaenlJ0QUyt/mEetngkQNsMCuNeRVXbcJED1nZS7JcK+GTU4kz3jcQ7bFuKfi8PF4ExXH7XSFNuSLQ=="
+        "requested": "[2.6.68, )",
+        "resolved": "2.6.68",
+        "contentHash": "5mZ+aXsYQnr3Wxz5O2tmbgPaa5kn9R+ZlfnPyGBogXI2sh4uTiHtvU++N4bURtn9vmDYIu2Zu323K9hFz9poXQ=="
       },
       "IKVM.ByteCode": {
         "type": "Transitive",

test/VisualOn.FeatureIDE.Test/packages.lock.json

@@ -343,7 +343,7 @@
         "type": "Project",
         "dependencies": {
           "IKVM": "[8.10.3, )",
-          "Validation": "[2.5.51, )"
+          "Validation": "[2.6.68, )"
         }
       },
       "IKVM": {
@@ -365,9 +365,9 @@
       },
       "Validation": {
         "type": "CentralTransitive",
-        "requested": "[2.5.51, )",
-        "resolved": "2.5.51",
-        "contentHash": "g/Aug7PVWaenlJ0QUyt/mEetngkQNsMCuNeRVXbcJED1nZS7JcK+GTU4kz3jcQ7bFuKfi8PF4ExXH7XSFNuSLQ=="
+        "requested": "[2.6.68, )",
+        "resolved": "2.6.68",
+        "contentHash": "5mZ+aXsYQnr3Wxz5O2tmbgPaa5kn9R+ZlfnPyGBogXI2sh4uTiHtvU++N4bURtn9vmDYIu2Zu323K9hFz9poXQ=="
       }
     },
     "net6.0": {
@@ -706,7 +706,7 @@
         "type": "Project",
         "dependencies": {
           "IKVM": "[8.10.3, )",
-          "Validation": "[2.5.51, )"
+          "Validation": "[2.6.68, )"
         }
       },
       "IKVM": {
@@ -724,9 +724,9 @@
       },
       "Validation": {
         "type": "CentralTransitive",
-        "requested": "[2.5.51, )",
-        "resolved": "2.5.51",
-        "contentHash": "g/Aug7PVWaenlJ0QUyt/mEetngkQNsMCuNeRVXbcJED1nZS7JcK+GTU4kz3jcQ7bFuKfi8PF4ExXH7XSFNuSLQ=="
+        "requested": "[2.6.68, )",
+        "resolved": "2.6.68",
+        "contentHash": "5mZ+aXsYQnr3Wxz5O2tmbgPaa5kn9R+ZlfnPyGBogXI2sh4uTiHtvU++N4bURtn9vmDYIu2Zu323K9hFz9poXQ=="
       }
     },
     "net8.0": {
@@ -1040,7 +1040,7 @@
         "type": "Project",
         "dependencies": {
           "IKVM": "[8.10.3, )",
-          "Validation": "[2.5.51, )"
+          "Validation": "[2.6.68, )"
         }
       },
       "IKVM": {
@@ -1058,9 +1058,9 @@
       },
       "Validation": {
         "type": "CentralTransitive",
-        "requested": "[2.5.51, )",
-        "resolved": "2.5.51",
-        "contentHash": "g/Aug7PVWaenlJ0QUyt/mEetngkQNsMCuNeRVXbcJED1nZS7JcK+GTU4kz3jcQ7bFuKfi8PF4ExXH7XSFNuSLQ=="
+        "requested": "[2.6.68, )",
+        "resolved": "2.6.68",
+        "contentHash": "5mZ+aXsYQnr3Wxz5O2tmbgPaa5kn9R+ZlfnPyGBogXI2sh4uTiHtvU++N4bURtn9vmDYIu2Zu323K9hFz9poXQ=="
       }
     }
   }