* contracts-bedrock: migrate to just

Move away from `pnpm` for contracts scripts
and towards `just`. `just` was made for this,
since we are moving away from JS it makes no
sense to keep `pnpm` around which is native
to the JS ecosystem.

* ci: install just

* ops: cleanup, docs

* ci: install just

* justfile: update

* ci: fix install

* snapshots: update

* contracts-bedrock: remove pnpm/node, cleanup dockerfile

* slither ci: no longer need for workaround (TM)

* ts-linting: remove

* kontrol: regenerate snapshots

* safecall: update test

* test: update
Co-authored-by: Matt Solomon <matt@mattsolomon.dev>

* docs: update
Co-authored-by: Matt Solomon <matt@mattsolomon.dev>

* readme: update
Co-authored-by: Matt Solomon <matt@mattsolomon.dev>

* docs: update
Co-authored-by: Matt Solomon <matt@mattsolomon.dev>

* docs: update
Co-authored-by: Matt Solomon <matt@mattsolomon.dev>

* docs: update
Co-authored-by: Maurelian <john@oplabs.co>

* versions: use latest

* ci: fix

* CONTRIBUTING: update

* ci: fix

* lint: fix

---------
Co-authored-by: protolambda <proto@protolambda.com>
Co-authored-by: Matt Solomon <matt@mattsolomon.dev>
Co-authored-by: Maurelian <john@oplabs.co>