RPG Save Editor v1.3.0

What's Changed

• update latest.json for v1.2.0 (@github-actions[bot])
• Fix updater: escape newlines in latest.json and improve workflow (@truongthang2211)
• Fix updater by hosting latest.json on GitHub Pages (@truongthang2211)
• Accept RPG Maker MZ .rmmzsave files (pako/zlib + LZ-String) (#11) (@DSeaStar)
• Bump version to 1.3.0 (@truongthang2211)

Full Changelog: v1.2.0...v1.3.0