Bump Mixin dependency.
Bump Mixin dependency.

Signed-off-by: Chris Sanders <becb1b07b5e7418402924748493938777e4ce438@outlook.com>

DDoS/SpongeForge,coaster3000/Sponge,DDoS/Sponge,Istar-Eldritch/Sponge,caseif/Sponge,SpongePowered/SpongeForge,kenzierocks/SpongeForge,kenzierocks/Sponge,joseph00713/Sponge,DDoS/Sponge,kenzierocks/Sponge,joseph00713/Sponge,DDoS/SpongeForge,kenzierocks/SpongeForge,SpongePowered/SpongeForge,Istar-Eldritch/Sponge,caseif/Sponge,coaster3000/Sponge