devel/indi: Update 2.1.3 => 2.1.6

Changelogs:

• https://github.com/indilib/indi/releases/tag/v2.1.4
• https://github.com/indilib/indi/releases/tag/v2.1.5
• https://github.com/indilib/indi/releases/tag/v2.1.5.1
• https://github.com/indilib/indi/releases/tag/v2.1.6
• https://github.com/indilib/indi/compare/v2.1.3...v2.1.6

• Fix WWW HTTP 301 redirect
• Pet portclippy(1) and portfmt(1)
• Add patch including headers for missing identifiers

PR: 288453
Approved by: acm@ (maintainer, timeout > 2 months)
Approved by: yuri@ (Mentor)