Pysigma-backend-splunk

* Fix: operator precedence
* Updated dependencies

Fixed quoting of field names with spaces.

Quoting of whitespaces in field names.

What's Changed
* Moved data model mappings to processing pipeline
* Add repository by fabaff in https://github.com/SigmaHQ/pySigma-backend-splunk/pull/3
* Added initiliazation and condition to avoid UbuoundLocalError by elhoim in https://github.com/SigmaHQ/pySigma-backend-splunk/pull/4
* Updated dependencies

New Contributors
* fabaff made their first contribution in https://github.com/SigmaHQ/pySigma-backend-splunk/pull/3
* elhoim made their first contribution in https://github.com/SigmaHQ/pySigma-backend-splunk/pull/4

**Full Changelog**: https://github.com/SigmaHQ/pySigma-backend-splunk/compare/v0.3.2...v0.3.3

Fixed CIM pipeline description.

CIM pipeline naming