Remove extra hyphen out of the core-metadata.yaml

[judehung]

🐞 Bug Report

Affected Services [REQUIRED]

The issue is located in: openapi/v3/core-metadata.yaml

Is this a regression?

No

Description and Minimal Reproduction [REQUIRED]

Three map[string]any fields are recently added into DTOs:

1. tags field of Device DTO
2. properties field of Device DTO
3. properties field of ProvisionWatcher
   The proper way to show map[string]any in swagger is like following:

tags:
  tag1:
    field1: "field1Value"
    field2: "field2Value"
  tag2:
    field3: "field3Value"
    field4: "field4Value"
    field5: "field5Value"

However, #4375 accidentally add extra hyphens like following:

tags:
  - tag1:
      field1: "field1Value"
      field2: "field2Value"
  - tag2:
      field3: "field3Value"
      field4: "field4Value"
      field5: "field5Value"

Those hyphens should be removed for proper map[string] representation.

🔥 Exception or Error

N/A

🌍 Your Environment

Deployment Environment:
N/A
EdgeX Version [REQUIRED]:
3.0.0

Anything else relevant?
No

[cloudxxx8]

fixed in #4378