Update iosevka-fonts to version 15.5.0 / rev 37 via SR 980832
    
    https://build.opensuse.org/request/show/980832
    by user urbic + dimstar_suse
    - Update to v15.5.0
      * Changes of version 15.5.0
        = Add characters
          ~ LATIN SMALL LETTER B WITH MIDDLE TILDE (U+1D6C) ... LATIN
            SMALL LETTER Z WITH MIDDLE TILDE (U+1D76);
          ~ LATIN SMALL CAPITAL LETTER U WITH STROKE (U+1D7E);
    - Update to v15.4.2
      * Changes of version 15.4.2
        = Fix ranks of cv72 (variants applying to 1) (#1358).
    - Update to v15.4.1
      * Changes of version 15.4.1
        = Fix VXDD application on U+1D1E (#1357).