* fix(ctb): bug computing L2 timestamp

Fixes a bug where the wrong constant was being used to compute L2
timestamps.

* bedrock: fix computeL2Timestamp block time

* bedrock: regenerate bindings

And add changeset.

* devnet: add missing config
Co-authored-by: Maurelian <maurelian@protonmail.ch>
Co-authored-by: Mark Tyneway <mark.tyneway@gmail.com>