Pysigma

Fixed CIM pipeline description.

CIM pipeline naming

What's Changed
* Sigma Backend Splunk data model support by P4T12ICK in https://github.com/SigmaHQ/pySigma-backend-splunk/pull/2

New Contributors
* P4T12ICK made their first contribution in https://github.com/SigmaHQ/pySigma-backend-splunk/pull/2

**Full Changelog**: https://github.com/SigmaHQ/pySigma-backend-splunk/compare/v0.2.3...v0.3.0

* Updated to pySigma 0.5.0
* `field IN (value list)` expressions are now generated with wildcard values.

* Parameterized min/max time
* Updated pySigma dependency for bugfixes

* Added Windows processing pipelines.
* Updated dependencies.