["BUG"] Error: Missing configuration value: 'is_buildkit_enabled' is undefined

[lpm0073]

Describe the bug
I encountered the following run-time tutor configuration error.

Configuration saved to /home/runner/.local/share/tutor/config.yml
Error rendering template codejail/build/codejail/Dockerfile
Error: Missing configuration value: 'is_buildkit_enabled' is undefined

Reviewing the tutor 17 release notes -- https://github.com/overhangio/tutor/releases -- i noticed this:

💥[Deprecation] The template variable is_buildkit_enabled, which now always returns True, is deprecated. Plugin authors should assume BuildKit is enabled and remove the variable from their templates (by @kdmccormick).

so, apparently there was no grace period for the removal of the tutor template variable is_buildkit_enabled

To Reproduce
Steps to reproduce the behavior:

          tutor config save --set CODEJAIL_DOCKER_IMAGE=${CODEJAIL_DOCKER_IMAGE} \
                            --set CODEJAIL_ENFORCE_APPARMOR=false \
                            --set CODEJAIL_ENABLE_K8S_DAEMONSET=true \
                            --set CODEJAIL_EXTRA_PIP_REQUIREMENTS='["git+https://github.com/StepwiseMath/stepwise-edx-plugin","git+https://${{ env.GITHUB_USER }}:${{ secrets.PAT }}@github.com/QueriumCorp/swxblock","git+https://${{ env.GITHUB_USER }}:${{ secrets.PAT }}@github.com/QueriumCorp/swpwrxblock","git+https://${{ env.GITHUB_USER }}:${{ secrets.PAT }}@github.com/QueriumCorp/geogebra_xblock"]' \

I've thus far isolated the problem to the CODEJAIL_EXTRA_PIP_REQUIREMENTS and furthermore will note that three of the four repositories in the list are private repos. i'm still researching whether this bears on the problem.

I experimented with provided a list of PyPi packages to the CODEJAIL_EXTRA_PIP_REQUIREMENTS and got the same error:

          tutor config save --set CODEJAIL_DOCKER_IMAGE=${CODEJAIL_DOCKER_IMAGE} \
                            --set CODEJAIL_ENFORCE_APPARMOR=false \
                            --set CODEJAIL_ENABLE_K8S_DAEMONSET=true \
                            --set CODEJAIL_EXTRA_PIP_REQUIREMENTS='["python-dotenv","pydantic","langchain","openai"]' \

Expected behavior
tutor configuration should saved.

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Environment variables:

    AWS_REGION: us-east-2
    ORGANIZATION: stepwisemath
    NAMESPACE: swm-openedx-us-prod
    EKS_CLUSTER_NAME: apps-hosting-service
    AWS_ECR_REPOSITORY: stepwisemath/codejail
    AWS_DEFAULT_REGION: us-east-2
    TUTOR_VERSION: 17.0.0
    TUTOR_RUN_CADDY: false
    TUTOR_RUN_NGINX: false
    TUTOR_ID: tutor-swm-openedx-us-prod
    TUTOR_K8S_NAMESPACE: swm-openedx-us-prod
    AWS_ECR_REGISTRY_CODEJAIL: 090511222473.dkr.ecr.us-east-2.amazonaws.com
    AWS_ECR_REPOSITORY_CODEJAIL: stepwisemath/codejail
    REPOSITORY_TAG_CODEJAIL: 17.0.0-202401021551
    CODEJAIL_DOCKER_IMAGE: 090511222473.dkr.ecr.us-east-2.amazonaws.com/stepwisemath/codejail:17.0.0-202401021551

[lpm0073]

Please see #47

[MaferMazu]

Thanks for open a PR to fix this. We will review it soon.