Fix obvious spelling mistakes in tests and action metadata

Correct three spelling mistakes.

This updates the GitHub Action output description, fixes a mocked
error message in a test, and renames a test file whose name
misspelled "exceptions". These changes are limited to wording and
test file naming, with no intended behavior change.

Author: PeterDaveHello

.github/actions/poetry-install/action.yaml

@@ -10,7 +10,7 @@ inputs:
 
 outputs:
   cache-hit:
-    description: Whether an exact cache hit occured
+    description: Whether an exact cache hit occurred
     value: ${{ steps.cache.outputs.cache-hit }}
 
 runs:

…e/test_exections_poetry_runtime_error.py …/test_exceptions_poetry_runtime_error.pytests/console/test_exections_poetry_runtime_error.py renamed to tests/console/test_exceptions_poetry_runtime_error.py tests/console/test_exections_poetry_runtime_error.py renamed to tests/console/test_exceptions_poetry_runtime_error.py

@@ -156,7 +156,7 @@ def test_uploader_properly_handles_nonstandard_errors(
     content = (
         b'{\n "errors": [ {\n '
         b'"status": 400,'
-        b'"message": "I cant let you do that, dave"\n'
+        b'"message": "I can\'t let you do that, dave"\n'
         b"} ]\n}"
     )
     http.post("https://foo.com", status=400, body=content)