Rename connect_white_gu10.yaml to cct_v1_lightbulb.yaml

This follows the older generic dp mapping for Tuya lightbubs (v1).
cct_lightbulb.yaml already exists for the newer v2 mapping, so name this as v1.

It also matches gold_cct_lightbulb.yaml, but that has a non-standard color temperature range, and some additional (optional) config options.

PR #2125