change `Code of Conduct` link to scala from lightbend?

[xuwei-k]

.github/CODE_OF_CONDUCT.md

Lines 1 to 10 in e77108c

	All repositories in these organizations:
	* [lightbend](https://github.com/lightbend)
	* [akka](https://github.com/akka)
	* [lagom](https://github.com/lagom)
	* [playframework](https://github.com/playframework)
	* [sbt](https://github.com/sbt)
	* [slick](https://github.com/slick)
	are covered by the Lightbend Community Code of Conduct: https://www.lightbend.com/conduct

🤔

• https://scala-lang.org/conduct/
• https://www.lightbend.com/conduct
• https://www.scala-lang.org/news/2023/08/25/sbt-license-transfer.html

/cc @eed3si9n

[eed3si9n]

Yea, I guess so.