syntax-check[specific]: the role '<role name>' was not found when running ansible-lint for a role

[coaxial]

Running this job on GH Actions:

  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - name: Checkout codebase
        uses: actions/checkout@v2

      - name: Run ansible-lint
        uses: ansible/ansible-lint-action@v6 # same issue with main instead of v6

I get the following error:

Error: the role 'radicale' was not found in /github/workspace/tests/roles:/github/home/.cache/ansible-compat/21a323/roles:/github/home/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles:/github/workspace/tests

                  Rule Violation Summary                   
 count tag                    profile rule associated tags 
     1 syntax-check[specific] min     core, unskippable 

The role in question, radicale, is the role I'm linting. I don't know what triggers this error because there is no reference to the problematic file and line where it found the issue, nor could I find any information on syntax-check[specific] relating to that particular error.

The repo in question is here: https://github.com/coaxial/ansible-role-radicale/tree/role and the failing GH Actions log is here: https://github.com/coaxial/ansible-role-radicale/actions/runs/5201785958/jobs/9382446452