chore(deps): update splunk/addonfactory-test-matrix-action action to v1.12.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
splunk/addonfactory-test-matrix-action	action	minor	v1.10.4 -> v1.12.0

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Release Notes

splunk/addonfactory-test-matrix-action (splunk/addonfactory-test-matrix-action)

### [`v1.12.0`](https://togithub.com/splunk/addonfactory-test-matrix-action/releases/tag/v1.12.0) [Compare Source](https://togithub.com/splunk/addonfactory-test-matrix-action/compare/v1.11.0...v1.12.0) ##### Features - revert unreleased python39 splunk ([#​154](https://togithub.com/splunk/addonfactory-test-matrix-action/issues/154)) ([3452334](https://togithub.com/splunk/addonfactory-test-matrix-action/commit/3452334a7e58520980e7593bcc49b5bac4d25459)), closes [#​153](https://togithub.com/splunk/addonfactory-test-matrix-action/issues/153) [#​152](https://togithub.com/splunk/addonfactory-test-matrix-action/issues/152) ### [`v1.11.0`](https://togithub.com/splunk/addonfactory-test-matrix-action/releases/tag/v1.11.0) [Compare Source](https://togithub.com/splunk/addonfactory-test-matrix-action/compare/v1.10.4...v1.11.0) ##### Features - add unreleased splunk ([#​152](https://togithub.com/splunk/addonfactory-test-matrix-action/issues/152)) ([eaab6db](https://togithub.com/splunk/addonfactory-test-matrix-action/commit/eaab6dbfeeaec5f82003f229926510db7b3e15fa))

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