[TT-7488/TT-9594]modify json schema to allow both body and path if pr…

…ovided (#5367)

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## Description

This PR modifies json schema to allow both path and body if provided
while creating a transform body (Request/Response) middleware.

## Related Issue
https://tyktech.atlassian.net/browse/TT-9594

## Motivation and Context

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## How This Has Been Tested

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etc. -->
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## Screenshots (if appropriate)
screenshot after saving the middleware changes
![Screenshot 2023-07-27 at 11 56 25
AM](https://github.com/TykTechnologies/tyk/assets/8171046/cdd0bf6b-eb71-4a50-b83f-f39e4a1394f2)

Raw editor
![Screenshot 2023-07-27 at 12 33 20
PM](https://github.com/TykTechnologies/tyk/assets/8171046/6217ff4d-7529-43d1-ba4b-14a4fc7a86a7)


## Types of changes

<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->

- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Refactoring or add test (improvements in base code or adds test
coverage to functionality)

## Checklist

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that apply -->
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checked. -->
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- [ ] I ensured that the documentation is up to date
- [ ] I explained why this PR updates go.mod in detail with reasoning
why it's required
- [ ] I would like a code coverage CI quality gate exception and have
explained why

apidef/oas/schema/x-tyk-api-gateway.json

@@ -546,22 +546,19 @@
           "type": "string"
         }
       },
-      "oneOf": [
+      "anyOf": [
         {
-          "required": [
-            "body"
-          ]
+          "required": ["body"]
         },
         {
-          "required": [
-            "path"
-          ]
+          "required": ["path"]
         }
       ],
       "required": [
         "enabled",
         "format"
-      ]
+      ],
+      "minProperties": 3
     },
     "X-Tyk-CachePlugin": {
       "type": "object",