On long-lived machines, it's possible that the `.build-results` directory isn't cleared between invocations. This will result in the job summary including results from previous jobs.
By marking each build-results file as 'processed' at the end of the job, we can avoid this scenario.
Now, a `dependency-submission` step will trigger a dependency-graph
generation, even if it follows a `setup-gradle` step in the workflow.
Similarly, a `setup-gradle` step with `dependency-graph` configured
will function as expected even if it follows a `setup-gradle` step.
