update release workflow

[ankitsny]

1. What this PR does / why we need it:

• Release workflow will run the test and draft the release notes with empty artifacts.

2. Which issue(s) this PR fixes

    (optional, in `fixes #<issue number>` format, will close the issue(s) when PR gets merged):
   
    Fixes #
   

3. Additional information

4. Special notes for your reviewer

[vmwclabot]

@ankitsny, you must sign every commit in this pull request acknowledging our Developer Certificate of Origin before your changes are merged. This can be done by adding Signed-off-by: John Doe <[email protected]> to the last line of each Git commit message. The e-mail address used to sign must match the e-mail address of the Git author. Click here to view the Developer Certificate of Origin agreement.

• Commit 07281f4 must be signed by [email protected]

[vmwclabot]

@ankitsny, you must sign every commit in this pull request acknowledging our Developer Certificate of Origin before your changes are merged. This can be done by adding Signed-off-by: John Doe <[email protected]> to the last line of each Git commit message. The e-mail address used to sign must match the e-mail address of the Git author. Click here to view the Developer Certificate of Origin agreement.

• Commit 3af696b must be signed by [email protected]