chore: reduce build time by converting docker image to build with nix (#9099)

* Add Docker image

* Try building the container in CI

* Uncomment testing lines

* Trim image step

* Hit 'em with a Docker load

* Oopsie!

* Add a tag and push!

* Fix image name 🤦

* Fix sudo

* Fix target name

* Build and push

* Fix login to docker hub

* Revert to Docker push

* Fix PATH

* Fix SHA

* Fix ca certs

* Fix ca certs

* Fix coping files in

* Fix docker init

* Fix Docker group and init

* Add comments to our Nix

* Fix build stage

* Add some more comments

* Remove old dogfood image files

* Tag and push with branch name

* Fix tag passing

* Fix tag passing

* Remove old pull triggers

* Convert gen to use Nix

* Add protobuf to the flake

* Add prettier to the dev shell

* Swap to the faster Nix cache action

* Add the correct yq

* Fix gen

* Add make to the flake

* Update extensions

.gitignore

@@ -61,3 +61,6 @@ site/stats/
 ./scaletest/terraform/.terraform.lock.hcl
 scaletest/terraform/secrets.tfvars
 .terraform.tfstate.*
+
+# Nix
+result