The ornamental design for a gymshoedryerholder, as shown and described.
FIG. 1 is a top right perspective view of a gym shoe dryer holder showing my new design;
FIG. 2 is a top left perspective view thereof;
FIG. 3 is a bottom left perspective view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a back view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a left view thereof; and,
FIG. 9 is a right view thereof.
The broken line showing of the cord in FIG. 1-9 is included for the purpose of showing environmental structure and forms no part of the claimed design.