Merge pull request #454 from ydah/exclude-sample-dir #1349

Job	Run time
test-memory (head)	36s
check-misc (head)	7s
test-ruby (head, master)	5m 52s
steep-check (head)	19s
test-ruby (3.0, master)	5m 51s
test-windows (head)	2m 18s
ruby-versions / Generate Ruby versions	2s
test (2.5)	22s
test (2.6)	24s
test (2.7)	22s
test (3.0)	12s
test (3.1)	12s
test (3.2)	14s
test (3.3)	16s
test (head)	11s
	17m 18s

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