fix: update CI matrix from GLM 4.6 to GLM 4.7 (#440)

Co-authored-by: Letta <noreply@letta.com>

.github/workflows/ci.yml

@@ -149,7 +149,7 @@ jobs:
       fail-fast: false
       matrix:
         # Note: gemini-3-flash temporarily disabled due to instability
-        model: [gpt-5-minimal, gpt-4.1, sonnet-4.5, gemini-pro, glm-4.6, haiku]
+        model: [gpt-5-minimal, gpt-4.1, sonnet-4.5, gemini-pro, glm-4.7, haiku]
     steps:
       - name: Checkout
         uses: actions/checkout@v4