feat: add phase lifecycle to UiPathRuntimeStateEvent #22

Job	Run time
test-uipath-langchain	-1s
${{ matrix.testcase }} / ${{ matrix.environment }} / ${{ ((matrix.use_azure_chat && 'UiPathAzureChatOpenAI') \|\| 'UiPathChat') }}	0s
discover-testcases	-6s
	-7s

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