Rename dependabots.yml to dependabot.yml

Rename dependabots.yaml to dependabot.yaml
Renamed `.github/dependabots.yaml` to `.github/dependabot.yml` to follow
the required GitHub naming convention. This ensures Dependabot can detect
and apply security and version updates correctly.

Signed-off-by: Sandhya Adavikolanu  <sadaviko@qti.qualcomm.com>
Signed-off-by: Sandhya Adavikolanu <sadaviko@qti.qualcomm.com>

Author: Sandhya1236