[bug] buildType URL no longer accessible (https://github.com/slsa-framework/slsa-github-generator/container@v1)

[ken5scal]

Describe the bug
buildType specificed by "https://github.com/slsa-framework/slsa-github-generator/.github/workflows/generator_container_slsa3.yml@refs/tags/v2.0.0"

To Reproduce

1. Go to ' https://github.com/slsa-framework/slsa-github-generator/container@v1'

Expected behavior
As https://slsa.dev/spec/v0.2/provenance states, invocation.environment is a JSON object with a schema defined by buildType.
To understand the schema, we need info by referring to the buildType, but the page does not exist.

Screenshots

Additional context
NA