qxlsx: add v1.4.9, transitive_headers=True, drop oldest version

[valgur]

Summary

Changes to recipe: qxlsx/[*]

Motivation

Details

• Closes [qxlsx] Add version 1.4.8 #24096

---

• Read the contributing guidelines
• Checked that this PR is not a duplicate: list of PRs by recipe
• Tested locally with at least one configuration using a recent version of Conan

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