Use crystal 1.15.0 for CI

nobodywasishere · nobodywasishere · commit cabce0c3611a · 2025-01-19T22:22:51.000-05:00
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-        crystal: [latest]
+        crystal: [1.15.0]
 
     steps:
       - name: Checkout code
