baggagetrace: Add baggage key predicate #11044

Job	Run time
compatibility-test (~1.22.3, ubuntu-latest, 386)	2m 10s
compatibility-test (~1.22.3, ubuntu-latest, amd64)	2m 18s
compatibility-test (~1.22.3, macos-latest, amd64)	3m 10s
compatibility-test (~1.22.3, windows-latest, 386)	7m 8s
compatibility-test (~1.22.3, windows-latest, amd64)	7m 54s
compatibility-test (~1.21.10, ubuntu-latest, 386)	2m 28s
compatibility-test (~1.21.10, ubuntu-latest, amd64)	2m 21s
compatibility-test (~1.21.10, macos-latest, amd64)	3m 51s
integration (test-mongo-driver)	10s
compatibility-test (~1.21.10, windows-latest, 386)	6m 3s
compatibility-test (~1.21.10, windows-latest, amd64)	6m 16s
lint	5m 11s
test-coverage	4m 6s
test-race	3m 48s
test-integration	1s
test-compatibility	1s
	56m 56s

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