CompatHelper: add new compat entry for GLMakie in [weakdeps] at version 0.13, (keep existing compat) (#21)

Co-authored-by: CompatHelper Julia <compathelper_noreply@julialang.org>

Author: github-actions[bot]

Project.toml

@@ -61,6 +61,7 @@ DocStringExtensions = "0.9.3"
 EzXML = "1.2.0"
 ForceImport = "0.0.3"
 Functors = "0.5.2"
+GLMakie = "0.13"
 Gmsh = "0.3.1"
 JSON3 = "1.14.2"
 LinearAlgebra = "1.11.0"