chore(sync): sync errors schema (#12416)

## Motivation

Our error schemas are out of date from AIP
https://kong-aip.netlify.app/aip/193/ and are missing some status codes
(like Conflict).

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## Implementation information

Copied down the definition, in the future it might get synced.

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and discarded -->

## Supporting documentation

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xrel: Kong/kong-mesh#6656

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Signed-off-by: slonka <[email protected]>

api/openapi/specs/api.yaml

@@ -481,13 +481,13 @@ components:
       content:
         application/problem+json:
           schema:
-            $ref: './common/error_schema.yaml#/components/schemas/Error'
+            $ref: './common/error_schema.yaml#/components/schemas/BadRequestError'
     InternalServerError:
       description: Internal Server Error
       content:
         application/problem+json:
           schema:
-            $ref: './common/error_schema.yaml#/components/schemas/Error'
+            $ref: './common/error_schema.yaml#/components/schemas/InternalError'
   examples:
     GlobalInsightExample:
       value: