doc: update http URLs to https in GOVERNANCE.md

PR-URL: #17262
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>

GOVERNANCE.md

@@ -134,4 +134,4 @@ The TSC follows a [Consensus Seeking][] decision making model as described by
 the [TSC Charter][].
 
 [TSC Charter]: https://github.com/nodejs/TSC/blob/master/TSC-Charter.md
-[Consensus Seeking]: http://en.wikipedia.org/wiki/Consensus-seeking_decision-making
+[Consensus Seeking]: https://en.wikipedia.org/wiki/Consensus-seeking_decision-making