cfn-lint does not totally validate CodeBuildProject: Source or Artifacts

[christiana-smith-seagen]

CloudFormation Lint Version

1.9.7

What operating system are you using?

Windows

Describe the bug

Cfn-lint does not seem to catch issues related to CodeBuildProject:Source or CodeBuildProject:Artifacts. I have provided a template that should raise errors but does not. There may be other rules its missing but these are what I ran into.

Expected behavior

CodeBuildProject:Source should require Location when Type: S3

CodeBuildProject:Artifacts:Location may not contain forward-slashes

Reproduction template

Parameters:
  GithubRepository:
    Type: String
    Default: test-repo
    Description: Name of repository in Github
  CodeBuildComputeType:
    Type: String
    Default: BUILD_GENERAL1_SMALL
    Description: Type of compute environment to use
  CodeBuildRole:
    Type: String
    Default: arn:aws:iam::123456789:role/CODEBUILD-ROLE

    
Resources:
  EcrRepository:
    Type: AWS::ECR::Repository
    Properties:
      RepositoryName: !Ref GithubRepository

  CodeBuildProject:
    Type: AWS::CodeBuild::Project
    Properties:
      Name: !Ref GithubRepository
      Artifacts:
        Type: S3
        Location: !Sub dev-artifacts/${GithubRepository}
      Environment:
        ComputeType: !Ref CodeBuildComputeType
        EnvironmentVariables:
          - Name: ENV
            Value : "dev"
          - Name: AWS_DEFAULT_REGION
            Value: !Ref AWS::Region
          - Name: AWS_ACCOUNT_ID
            Value: !Ref "AWS::AccountId"
          - Name: AWS_ECR_REPOSITORY_URI
            Value: !Sub ${AWS::AccountId}.dkr.ecr.${AWS::Region}.amazonaws.com/${EcrRepository}
          - Name: IMAGE_REPO_NAME
            Value: !Ref GithubRepository
          - Name: IMAGE_TAG
            Value: "latest"
        Image: "public.ecr.aws/lts/ubuntu:24.04"
        PrivilegedMode: true
        Type: "LINUX_CONTAINER"
      ServiceRole: !Ref CodeBuildRole
      Source:
        Type: "S3"
        BuildSpec: codebuild.yaml