update xlings config file

Author: Sunrisepeak

.github/workflows/ci.yml

@@ -42,9 +42,11 @@ jobs:
 
       - name: Install GCC 15.1 with Xlings
         run: |
-          xlings install gcc@15.1 -y
+          xlings install --verbose
           ls -al $HOME/.xlings/subos/current/bin/cc
           cat $HOME/.xlings/.xlings.json
+          xmake --version
+          gcc --version
           cc --version
 
       - name: Build

.xlings.json

@@ -0,0 +1,8 @@
+{
+  "workspace": {
+    "cmake": "4.0.2",
+    "ninja": "1.12.1",
+    "xmake": "3.0.7",
+    "gcc": { "linux": "15.1.0" }
+  }
+}