CI: swith to Go 1.23 and 1.24

Author: drakkan

.github/workflows/CI.yml

@@ -12,10 +12,10 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        go: ['1.22', '1.21']
+        go: ['1.24', '1.23']
         exclude:
           - os: macos-latest
-            go: '1.21'
+            go: '1.24'
 
     steps:
       - uses: actions/checkout@v4