New version of pylint (2.15.5) identifies new issues

[github-actions[bot]]

A version of pylint is available in the Python package repositories that identifies issues with the spotfire package. Since we attempt to keep all pylint issues out of the source code (either by fixing the issue identified or by disabling that message with a localized comment), this is indicative of a new check in this new version of pylint.

Please investigate these issues, and either fix the source or disable the check with a comment. Further checks by this automation will be held until this issue is closed. Make sure that the fix updates the pylint requirement in requirements_lint.txt to the version identified here (2.15.5).

For reference, here is the output of this version of pylint:

$ pylint spotfire
************* Module spotfire.cabfile
spotfire/cabfile.py:10: [W4901, ] Deprecated module 'msilib' (deprecated-module)

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Your code has been rated at 10.00/10

This issue was automatically opened by the pylint.yaml workflow.

[bbassett-tibco]

This is the same problem that was noted earlier in #29. Ignoring this for now.