[BUG] Tags are getting added to APIM even though I have not defined them in artifacts>tags

### Release version

v6.0.1

### Describe the bug

Hello Team,
I noticed that in my APIM instance tags were getting added even though I have no tags defined in the repo.
On further investigation, I found that when the specifications.yaml file has tags as part of the open api definition properties like below example:

openapi: 3.0.1
info:
title: Test API Books
description: Books API
version: v1
paths:
/list-all-comedy-books:
get:
**tags:**
- comedyBooks
responses:
'200':
description: Success
content:
application/json:
--

then publisher is creating this Tag in APIM, in this example, i would see a tag called comedyBooks added to APIM.

### Expected behavior

Tag is not added to apim unless explicitly defined under artifacts>tags folder

### Actual behavior

Tag name is getting pulled from specifications file and being added to the API Tags in APIM.

### Reproduction Steps

Create an open api spec with a tag value like below and then publish this to APIM.

openapi: 3.0.1
info:
title: Test API Books
description: Books API
version: v1
paths:
/list-all-comedy-books:
get:
**tags:**
- comedyBooks
responses:
'200':
description: Success
content:
application/json: