feat: inital smoke test

[UnicornChance]

Description

Basic smoke test for uds-identity-config changes running against uds-core. This only tests that a change to the config will still deploy a healthy uds-core keycloak. More integration tests specific to registration and login and who knows what else are coming after this.

For the moment the git clone is a stopgap until we better understand what values need to be overridden when using the eventual k3d-core-slim image. Just want to get stuff in place as quickly as possible.

Add --no-cache flags to build process because of caching issues when building locally leading to false confidence in our processes.

Tested locally and in CI ( personal repo).

• uds run uds-core-integration-test

Related Issue

Fixes #27

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Other (security config, docs update, etc)

Checklist before merging

• Test, docs, adr added or updated as needed
• Contributor Guide Steps(https://github.com/defenseunicorns/uds-template-capability/blob/main/CONTRIBUTING.md#submitting-a-pull-request) followed

[rjferguson21]

Closing in favor of #42