Update 4 modules

[github-actions[bot]]

Update krb5-1.20.1.tar.gz to 1.21.1 Update pciutils-3.9.0.tar.gz to 3.10.0 Update re2-2023-02-01.tar.gz to 2023-07-01 Update snappy.git to 1.1.10

🤖 This pull request was automatically generated by flathub/flatpak-external-data-checker. Please open an issue if you have any questions or complaints. 🤖

[flathubbot]

Started test build 52645

[flathubbot]

Build 52645 failed