exclude 3rdparty/glTFSampleModels from default update

Author: AnastaZIuk

.gitmodules

@@ -54,6 +54,7 @@
 [submodule "3rdparty/glTFSampleModels"]
 	path = 3rdparty/glTFSampleModels
 	url = [email protected]:Devsh-Graphics-Programming/glTF-Sample-Models.git
+	update = none
 [submodule "3rdparty/nbl_spirv_cross"]
 	path = 3rdparty/nbl_spirv_cross
 	url = [email protected]:devshgraphicsprogramming/SPIRV-Cross.git
@@ -116,4 +117,4 @@
 	url = [email protected]:Devsh-Graphics-Programming/libdeflate.git
 [submodule "docker/compiler-explorer"]
 	path = docker/compiler-explorer
-	url = [email protected]:Devsh-Graphics-Programming/Compiler-Explorer-Docker.git
+	url = [email protected]:Devsh-Graphics-Programming/Compiler-Explorer-Docker.git