[infra] Update templates to use angle brackets

Change-Id: Ica3843fb71aea536bcf8647deaaf2df4f6005785
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/475717
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
diff --git a/tools/gpu/gl/interface/templates.go b/tools/gpu/gl/interface/templates.go
index 4701aa2..a88b9a4 100644
--- a/tools/gpu/gl/interface/templates.go
+++ b/tools/gpu/gl/interface/templates.go
@@ -170,10 +170,10 @@
 #else
 
 // Located https://github.com/emscripten-core/emscripten/tree/7ba7700902c46734987585409502f3c63beb650f/system/include/webgl
-#include "webgl/webgl1.h"
-#include "webgl/webgl1_ext.h"
-#include "webgl/webgl2.h"
-#include "webgl/webgl2_ext.h"
+#include <webgl/webgl1.h>
+#include <webgl/webgl1_ext.h>
+#include <webgl/webgl2.h>
+#include <webgl/webgl2_ext.h>
 
 #define GET_PROC(F) functions->f##F = emscripten_gl##F
 #define GET_PROC_SUFFIX(F, S) functions->f##F = emscripten_gl##F##S