[pending perl 5.34] biber: update to 2.16

[dkwo]

builds on x86_64-musl
disabled tests, as they require more recent perl

Have the results of the proposed changes been tested?

• I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me

[ericonr]

Does this bring important new stuff? Might be interesting to wait a bit so we can merge perl 5.34 as well.

[dkwo]

Nothing important, let's wait.

Revision history for Biber

2.16   (2020-12)
       * Better support for Unicode on Windows (10 1803+) with the
         --winunicode option
       * Option "output_macro_fields" no longer does anything as macro
         fields are auto-detected.
       * New options "output_no_macrodefs" and "output_all_macrodefs" control
         BibTeX macros (@STRING) output for bibtex format output.
2.15   (2020-08)
       * Added --output-legacy-dates and --output-field-replace options to
         aid in outputting legacy bibtex format in tool and non-tool mode
       * UTF-8 filenames supported on Windows
       * INCOMPATIBLE CHANGE - datasource globbing now has to be turned on
         explicitly with the --glob-datasources option. Globbing causes
         some issues with UTF8 encoding detection on some OSes and since it
         is a niche requirement, it is turned off by default.
       * DEPRECATION WARNING - The BBLXML output format will be removed in
         version 4. It is rarely used and complicates test suite maintenance
         considerably.

[dkwo]

included in #31635