Declare deposit-redemption positioning dependency
The use of left=of requires the tikz positioning library, which wasn't
explicitly declared, causing standalone PNG compilation to fail.
% !TEX root = ../build.tex
% !texpackages = rotating,tikz-uml,xstring,pgfopts
-% !tikzlibraries = arrows.meta
+% !tikzlibraries = arrows.meta,positioning
% !include = _common.tikz
% !figuretype = sidewaysfigure
% Underline that goes through descender.
