Temporary directory is not present.

[StevenRoodhorst]

When using the orb with a custom save-to-directory, the /tmp/swissknife/ directory is not created and it fails with
environment: line 26: /tmp/swissknife/artifacts.json: No such file or directory

I think the script needs to be updated to create the /tmp/swissknife/ first.
This on version v0.69.0.

Example:

- swissknife/get_job_artifacts:
    file-name-pattern: "artifact.tar.gz"
    job-number: LAST_SUCCESFUL_BUILD_NUMBER
    repo-name: REPO_NAME
    vcs-type: bitbucket
    save-to-directory: ${CIRCLE_WORKING_DIRECTORY}