Update snapshot tests for JsonPatchDocument content type

Co-authored-by: captainsafia <1857993+captainsafia@users.noreply.github.com>

Author: Copilot

src/OpenApi/sample/Sample.csproj

@@ -22,6 +22,7 @@
     <Reference Include="Microsoft.AspNetCore.StaticFiles" />
     <Reference Include="Microsoft.Extensions.FileProviders.Embedded" />
     <Reference Include="Microsoft.AspNetCore.Mvc" />
+    <Reference Include="Microsoft.AspNetCore.JsonPatch.SystemTextJson" />
   </ItemGroup>
 
   <ItemGroup>

src/OpenApi/test/Microsoft.AspNetCore.OpenApi.Tests/Integration/snapshots/OpenApi3_0/OpenApiDocumentIntegrationTests.VerifyOpenApiDocument_documentName=schemas-by-ref.verified.txt

@@ -507,6 +507,28 @@
           }
         }
       }
+    },
+    "/schemas-by-ref/json-patch": {
+      "patch": {
+        "tags": [
+          "Sample"
+        ],
+        "requestBody": {
+          "content": {
+            "application/json-patch+json": {
+              "schema": {
+                "$ref": "#/components/schemas/JsonPatchDocumentOfParentObject"
+              }
+            }
+          },
+          "required": true
+        },
+        "responses": {
+          "200": {
+            "description": "OK"
+          }
+        }
+      }
     }
   },
   "components": {
@@ -593,6 +615,7 @@
           }
         }
       },
+      "JsonPatchDocumentOfParentObject": { },
       "LocationContainer": {
         "required": [
           "location"

src/OpenApi/test/Microsoft.AspNetCore.OpenApi.Tests/Integration/snapshots/OpenApi3_1/OpenApiDocumentIntegrationTests.VerifyOpenApiDocument_documentName=schemas-by-ref.verified.txt

@@ -507,6 +507,28 @@
           }
         }
       }
+    },
+    "/schemas-by-ref/json-patch": {
+      "patch": {
+        "tags": [
+          "Sample"
+        ],
+        "requestBody": {
+          "content": {
+            "application/json-patch+json": {
+              "schema": {
+                "$ref": "#/components/schemas/JsonPatchDocumentOfParentObject"
+              }
+            }
+          },
+          "required": true
+        },
+        "responses": {
+          "200": {
+            "description": "OK"
+          }
+        }
+      }
     }
   },
   "components": {
@@ -593,6 +615,7 @@
           }
         }
       },
+      "JsonPatchDocumentOfParentObject": { },
       "LocationContainer": {
         "required": [
           "location"