deps: update slf4j monorepo to v2.0.13 #6138

Job	Run time
build (11)	12m 23s
build(21) except self-service clients	11m 25s
build (17)	12m 42s
build(8) except for gapic-generator-java	4m 10s
build(8) for gapic-generator-java	9m 33s
compatibility	1m 31s
gapic-generator-java-bom	1m 47s
lint	30s
showcase (11)	4m 17s
showcase-clirr	2m 59s
showcase (17)	3m 53s
showcase-native	8m 12s
unmanaged_dependency_check	4m 41s
dependency_analyzer_unit_test	13s
	1h 18m 16s

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