Setup baseruby before setup-directories

To run `make up`, baseruby needs to be 3.1 or later.

Author: nobu

.github/workflows/wasm.yml

@@ -65,6 +65,11 @@ jobs:
           sparse-checkout: /.github
           persist-credentials: false
 
+      - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # v1.306.0
+        with:
+          ruby-version: '3.1'
+          bundler: none
+
       - uses: ./.github/actions/setup/directories
         with:
           srcdir: src
@@ -99,11 +104,6 @@ jobs:
         run: |
           echo "WASI_SDK_PATH=/opt/wasi-sdk" >> $GITHUB_ENV
 
-      - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # v1.306.0
-        with:
-          ruby-version: '3.1'
-          bundler: none
-
       - name: Build baseruby
         run: |
           set -ex