[ci/hl] bump default hl-ver to 1.15 (#12074)

src-json/define.json

@@ -267,7 +267,7 @@
 	{
 		"name": "HlVer",
 		"define": "hl-ver",
-		"doc": "The HashLink version to target. (default: 1.10.0)",
+		"doc": "The HashLink version to target. (default: 1.15.0)",
 		"platforms": ["hl"],
 		"params": ["version"]
 	},

tests/threads/build.hxml

@@ -4,4 +4,4 @@
 --dce full
 -D analyzer-optimize
 -D UTEST_PRINT_TESTS
--D hl-ver=1.13.0
+-D hl-ver=1.15.0

tests/unit/compile-hl.hxml

@@ -3,4 +3,4 @@ compile-each.hxml
 -hl bin/unit.hl
 #-D interp
 -D hl-check
--D hl-ver=1.13.0
+-D hl-ver=1.15.0

tests/unit/compile-hlc.hxml

@@ -3,4 +3,4 @@ compile-each.hxml
 -hl bin/hlc/unit.c
 #-D interp
 -D hl-check
--D hl-ver=1.13.0
+-D hl-ver=1.15.0