Fix UploadCerts function

What's Changed

• Fix PAN-OS 11 issues with private key mismatch by @psiri in #1
• Implementation of additional checks before generating or uploading certificates by @Fluffyk0 in #3
• Fix function name typo inside a condition. by @Fluffyk0 in #4
• Fixes #5

New Contributors

• @Fluffyk0 made their first contribution in #3

Full Changelog: https://github.com/psiri/letsencrypt_paloalto/commits/1.0.1