bump gl-mat4

Author: etpinard

package-lock.json

@@ -75,7 +75,7 @@
     "gl-error3d": "^1.0.7",
     "gl-heatmap2d": "^1.0.4",
     "gl-line3d": "^1.1.2",
-    "gl-mat4": "^1.1.2",
+    "gl-mat4": "^1.2.0",
     "gl-mesh3d": "^2.0.0",
     "gl-plot2d": "^1.3.1",
     "gl-plot3d": "^1.5.5",