CBG-4518: better error to pass up stack when xattr config doesn't exist #13182

Job	Run time
addlicense	13s
build	1m 21s
lint	1m 37s
python-format	4s
python-lint	5s
test (macos)	2m 0s
test-default-collection	1m 51s
test-no-xattrs	1m 51s
test (windows)	1m 45s
test-race	1m 50s
test (ubuntu)	1m 51s
test-sgcollect (macos-latest)	54s
test-sgcollect (windows-latest)	1m 37s
test-stats-definition-exporter (macos-latest)	48s
test-sgcollect (ubuntu-latest)	22s
test-stats-definition-exporter (windows-latest)	1m 35s
test-stats-definition-exporter (ubuntu-latest)	1m 21s
	21m 5s

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