Fixes several resource leaks in ...

- gdscript
- gdscript_compiler
- regex
- android/export
- gles3/rasterizer (scene and storage)

platform/android/export/export.cpp

@@ -1591,8 +1591,11 @@ public:
 				String apkfname = "main." + itos(version_code) + "." + get_package_name(package_name) + ".obb";
 				String fullpath = p_path.get_base_dir().plus_file(apkfname);
 				err = save_pack(p_preset, fullpath);
+
 				if (err != OK) {
+					unzClose(pkg);
 					EditorNode::add_io_error("Could not write expansion package file: " + apkfname);
+
 					return OK;
 				}