graphics/qgis-ltr: Update to 3.16.16

• Change from Github to QGIS release archive
• Update some dependencies
• Reorder some Arguments

Changelog: https://github.com/qgis/QGIS/compare/final-3_16_15%5E...final-3_16_16

Reported by: Repology
MFH: 2022Q1

(cherry picked from commit 42579a50820cfd9f2a933d6dd7afaac26a8c3e6d)