fix: add a check for case sensitive OS

[Francesco-Voto]

What does this PR do?

Fix issue #1100

Motivation

Fix an issue on case sensitive OS

Additional Notes

I was considering if just removing the lowerCase(), but i am not sure if I am missing some edge case

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests
• Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)
• If this PR is auto-generated, please make sure also to manually update the code related to the change

[sbarrio]

Fix implemented here: #1102

Thanks again for your support 🙇