fix: MLFlowLogger artifact_path (#20669) #33

Job	Run time
build-packages / build-packages (lightning)	22s
build-packages / build-packages (fabric)	22s
build-packages / build-packages (pytorch)	24s
build-packages / merge-artifacts	6s
install-pkg (ubuntu-22.04, fabric, 3.9)	1m 47s
install-pkg (ubuntu-22.04, fabric, 3.11)	1m 44s
install-pkg (ubuntu-22.04, pytorch, 3.9)	1m 53s
install-pkg (ubuntu-22.04, pytorch, 3.11)	1m 56s
install-pkg (ubuntu-22.04, lightning, 3.9)	1m 51s
install-pkg (ubuntu-22.04, lightning, 3.11)	1m 44s
install-pkg (ubuntu-22.04, notset, 3.9)	1m 48s
install-pkg (ubuntu-22.04, notset, 3.11)	2m 39s
install-pkg (macOS-14, fabric, 3.9)	46s
install-pkg (macOS-14, fabric, 3.11)	29s
install-pkg (macOS-14, pytorch, 3.9)	52s
install-pkg (macOS-14, pytorch, 3.11)	32s
install-pkg (macOS-14, lightning, 3.9)	52s
install-pkg (macOS-14, lightning, 3.11)	59s
install-pkg (macOS-14, notset, 3.9)	51s
install-pkg (macOS-14, notset, 3.11)	34s
install-pkg (windows-2022, fabric, 3.9)	2m 26s
install-pkg (windows-2022, fabric, 3.11)	3m 3s
install-pkg (windows-2022, pytorch, 3.9)	2m 43s
install-pkg (windows-2022, pytorch, 3.11)	2m 28s
install-pkg (windows-2022, lightning, 3.9)	2m 58s
install-pkg (windows-2022, lightning, 3.11)	2m 31s
install-pkg (windows-2022, notset, 3.9)	2m 31s
install-pkg (windows-2022, notset, 3.11)	2m 56s
install-pkg-guardian	1s
	44m 8s

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