Update release workflow to trigger on tags for maven central releases

[baywet]

The current workflow triggers on push to dev

msgraph-sdk-java/.github/workflows/preview-and-release.yml

Line 5 in a460c84

branches: [dev, support/5.x.x]

msgraph-sdk-java/.github/workflows/preview-and-release.yml

Line 52 in a460c84

if: ${{ github.ref == 'refs/heads/dev' || github.ref == 'refs/heads/support/5.x.x' }}

This is problematic because it creates more releases than we want.

TODO:

• remove the trigger for the support branch (keep dev for snapshots)
• add a trigger on tags v*
• update the filter for central releases to check for tags only
• remove approval on the maven central environment
• replicate on beta
• replicate on core

[baywet]

To recap what was said in teams and during meetings:
Before we can remove approval, we need to make sure releases are not going to go out inadvertly.
I suggested we add a filter to the maven central release job so we only consider tags created by the release please bot moving forward.
Once this is done, we can close this issue, and remove the approval.