Added tests for schema keyword retention when description is present

[glen-84]

Summary of the changes (Less than 80 chars)

• Added tests for schema keyword retention when description is present.

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See graphql/graphql-spec#1167.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (cd6bbc5) to head (52a1788).
Report is 1 commits behind head on main.

Additional details and impacted files

@@     Coverage Diff      @@
##   main   #8354   +/-   ##
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