Bump versions of mammoth and pdfminer.six (#1492)#1521

jarlungoodoo73 wants to merge 1 commit intomicrosoft:dependabot/github_actions/actions/checkout-6microsoft/markitdown:dependabot/github_actions/actions/checkout-6from

Jabidahs-Creations-Systems:Markitdown-branch2Jabidahs-Creations-Systems/markitdown3:Markitdown-branch2Copy head branch name to clipboard