gn: update to git HEAD

gn/Makefile

@@ -9,9 +9,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://gn.googlesource.com/gn.git
-PKG_SOURCE_DATE:=2025-06-19
-PKG_SOURCE_VERSION:=3f7fb0dd45372b97fa050df7b277e706595621f3
-PKG_MIRROR_HASH:=2d0abc1e1a572644bd1b74c4415e91dde322eee4e20c99f0e7d5975a5badad29
+PKG_SOURCE_DATE:=2025-08-11
+PKG_SOURCE_VERSION:=c15bfa41e5266dcce4161968ab4eb0387cae7a7a
+PKG_MIRROR_HASH:=74a86fc09670bde4e0140329662de9a577ec3ec48eba557552964c0e101432c1
 
 PKG_LICENSE:=BSD 3-Clause
 PKG_LICENSE_FILES:=LICENSE

gn/src/out/last_commit_position.h

@@ -3,7 +3,7 @@
 #ifndef OUT_LAST_COMMIT_POSITION_H_
 #define OUT_LAST_COMMIT_POSITION_H_
 
-#define LAST_COMMIT_POSITION_NUM 2254
-#define LAST_COMMIT_POSITION "2254 (3f7fb0dd4537)"
+#define LAST_COMMIT_POSITION_NUM 2276
+#define LAST_COMMIT_POSITION "2276 (c15bfa41e526)"
 
 #endif  // OUT_LAST_COMMIT_POSITION_H_