Bump mods/hopper from `eb26adc` to `6ac1b61`

Bumps mods/hopper from eb26adc to 6ac1b61.

Commits

• 6ac1b61 bring in translations from weblate.org
• 6525e57 add i18n script, update translation files
• 75e2bdb Update to minetest builtin’s translation api (#12)
• 1ee79fb add pt, br-pt translations
• 8246da4 update forum link
• 0f3df80 update screenshot and documentation
• 51b70fb Avoid hoppers to "repair" taken items (#10)
• See full diff in compare view