Search bar asset deployment on Github Actions (#1663)

Deploy the search bar assets on Github Actions

The logic is based on the logic from the Circle CI config, however this also checks whether or not the major version should be deployed.

The search bar relies on much of the same deploy logic as the regular build_and_deploy_hold workflow, so I extracted out the extract_version and the should_deploy_major_version workflows. In order to support the search bar, I added an `ignore_prefix` to those workflows.

Remove the circle CI config because this is the last piece of the migration.

J=SLAP-1819
TEST=manual

For testing, update the search bar deploy workflow to run based off of the branch name, and create a search-bar-v0.1.0 branch and see it deploy v0, v0.1, and v0.1.0. Create a test tag to confirm the build and deploy hold script didn't break