Rule to invoke Bandit from webservice running on Cloud Run

[evankanderson]

This is an example of using mindersec/minder#5181 to invoke https://github.com/PyCQA/bandit on a PR using Minder and an external web service (in this case, hosted on https://cloud.google.com/run out of familiarity).

The demo consists of the following parts:

• A local minder server with Add support for base and target trees in git ingest, add .tar.gz bundler minder#5181 and the pr_comment_alert feature enabled

• A Cloud Run service running https://github.com/evankanderson/banditize from a (hand-built) container

• The rule in this profile.

• The following profile:

  version: v1
  type: profile
  name: Test-Bandit
  display_name: Test bandit against PRs
  context:
    provider: github
  alert: "on"
  remediate: "off"
  pull_request:
    - type: pr_bandit
      def: {}

This will be further improved by mindersec/minder#5192 (to allow us to put the details directly in the comment), and mindersec/minder#5144 to feed details from the evaluation into the PR comment / alert.