math/elementary-calculator: update to 2.0.2

ChangeLog: https://github.com/elementary/calculator/releases/tag/2.0.2

• Update screenshots
• Update screenshot filename in README.md
• Application: use startup () and clean up
• Hardcode elementary styles, set empty title label
• actions/checkout@v3
• Copy entry content on Ctrl+C
• Paste text into entry on Ctrl+V
• Switch to GHCR container
• Bump bilelmoussaoui/flatpak-github-actions from 4 to 5
• Bump docker/setup-qemu-action from 1 to 2
• Update flatpak actions to new namespace
• Bump runtime to 7.2
• Bump flatpak/flatpak-github-actions from 5 to 6
• Fix meson warnings
• Metainfo Improvements
• Update calculator.metainfo.xml.in
• Release 2.0.2

PR: 271770
Reported by: duchateau.olivier@gmail.com (maintainer)