Fix typo in deprecation notice

See: https://en.oxforddictionaries.com/definition/deprecate
Status Job ID Name Coverage
  Lint
failed #114718
docker
Lint

 
  Coverage
skipped #114719
docker
Coverage
 
  Unittest
skipped #114720
docker
Unittest27
skipped #114721
docker
Unittest35
 
Name Stage Failure
failed
Lint Lint There has been a timeout failure or the job got stuck. Check your timeout limits or try again
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