[MOO-2258] Release pipeline script fix to remove sync.yml in the mendix/docs PR

[saurabhchavan1711]

Description

This PR changes will remove the unnecessary sync.yml file from the PR raised against mendix/docs.

Checklist

To ensure this pull request meets the requirements for merging, please complete the checklist below:

• Release Note: As a part of the release process, an automated PR will be created for the Mendix Docs repository relevant to the changes introduced in this PR. Post release, please ensure that the release note accurately reflects the changes and impacts of this PR.
• Breaking Changes: This PR introduces breaking changes (e.g., changes that require updates to existing configurations, dependencies).
  • If yes, I have documented these breaking changes and provided guidance for users to adapt.
  • Details about breaking changes: [Provide details here, if applicable]

This PR contains

• Bug fix
• Feature
• Refactor
• Documentation
• Other (describe)

Important Notes

• Make sure the release note accurately describes the changes and impacts introduced by this PR.