☕ Use exact version for Deno in CI

Author: lambdalisue

.github/workflows/test.yml

@@ -53,7 +53,7 @@ jobs:
           - macos-latest
           - ubuntu-latest
         deno_version:
-          - "1.45.x"
+          - "1.45.0"
           - "1.x"
         host_version:
           - vim: "v9.1.0448"