Update CI

Author: lpil

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: erlef/setup-beam@v1
         with:
           otp-version: "25.1"
-          gleam-version: "0.30.5"
+          gleam-version: "0.32.2"
           rebar3-version: "3"
       - run: gleam build
       # TODO: enable testing again