chore: update to Crystal 1.22.0 (#6083)

.github/workflows/ci.yml

@@ -49,7 +49,8 @@ jobs:
           - 1.18.2
           - 1.19.2
           - 1.20.3
-          - 1.21.0
+          - 1.21.1
+          - 1.22.0
         include:
           - crystal: nightly
             stable: false
@@ -139,7 +140,7 @@ jobs:
         id: lint_step_install_crystal
         uses: crystal-lang/install-crystal@v1.9.3
         with:
-          crystal: 1.20.3
+          crystal: 1.22.0
 
       - name: Cache Shards
         uses: actions/cache@v6