Enable exemplars by default (#5778) #14325

Job	Run time
lint	2m 27s
test-bench	51s
test-race	2m 8s
compatibility-test (1.23.0, ubuntu-latest, 386)	1m 13s
test-concurrent-safe	4m 9s
compatibility-test (1.23.0, ubuntu-latest, amd64)	46s
compatibility-test (1.23.0, macos-13, amd64)	2m 40s
test-coverage	1m 4s
compatibility-test (1.23.0, macos-latest, arm64)	54s
compatibility-test (1.23.0, windows-latest, 386)	4m 3s
compatibility-test (1.23.0, windows-latest, amd64)	3m 20s
compatibility-test (1.23.0, actuated-arm64-2cpu-8gb, arm64)	2m 5s
compatibility-test (~1.22.5, ubuntu-latest, 386)	1m 12s
compatibility-test (~1.22.5, ubuntu-latest, amd64)	41s
compatibility-test (~1.22.5, macos-13, amd64)	2m 28s
compatibility-test (~1.22.5, macos-latest, arm64)	52s
compatibility-test (~1.22.5, windows-latest, 386)	3m 58s
compatibility-test (~1.22.5, windows-latest, amd64)	4m 43s
compatibility-test (~1.22.5, actuated-arm64-2cpu-8gb, arm64)	1m 55s
codecov	9s
test-compatibility	1s
	41m 39s

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