Test

Fix typo in test examples #fj0 #921

Job	Run time
test_course_definition / identify_language_slugs	3s
test_course_definition / go_lint	4s
test_course_definition / js_lint	17s
test_course_definition / docker_lint	9s
test_course_definition / lint	58s
test_course_definition / markdown_lint	20s
test_course_definition / rust_lint	5s
test_course_definition / validate-schemas	12s
test_course_definition / validate-stages-naming	5s
test_course_definition / verify_templates_compiled	22s
test_course_definition / test (c)	38s
test_course_definition / test (clojure)	1m 52s
test_course_definition / test (cpp)	2m 1s
test_course_definition / test (crystal)	1m 1s
test_course_definition / test (csharp)	1m 20s
test_course_definition / test (elixir)	47s
test_course_definition / test (gleam)	52s
test_course_definition / test (go)	1m 1s
test_course_definition / test (haskell)	2m 52s
test_course_definition / test (java)	1m 55s
test_course_definition / test (javascript)	47s
test_course_definition / test (kotlin)	2m 26s
test_course_definition / test (ocaml)	6m 32s
test_course_definition / test (php)	42s
test_course_definition / test (python)	31s
test_course_definition / test (ruby)	44s
test_course_definition / test (rust)	1m 46s
test_course_definition / test (scala)	3m 37s
test_course_definition / test (swift)	4m 28s
test_course_definition / test (typescript)	1m 19s
test_course_definition / test (zig)	1m 26s
	41m 12s

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