Fix a formatting in test.yml (#443)

This PR is fix a formatting in test.yml.
- indentation
- too many spaces after colon

Author: ydah

.github/workflows/test.yml

@@ -25,16 +25,16 @@ jobs:
     env:
       WITH_LATEST_RELINE: ${{matrix.with_latest_reline}}
     steps:
-    - uses: actions/checkout@master
-    - name: Set up Ruby
-      uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: ${{ matrix.ruby }}
-        bundler-cache: true
-    - name: Run tests
-      run: bundle exec rake test
-    - name: Run tests in isolation
-      run: bundle exec rake test_in_isolation
+      - uses: actions/checkout@master
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - name: Run tests
+        run: bundle exec rake test
+      - name: Run tests in isolation
+        run: bundle exec rake test_in_isolation
   vterm-yamatanooroti:
     name: >-
       vterm-yamatanooroti ${{ matrix.ruby }} ${{ matrix.with_latest_reline && '(latest reline)' || '' }}
@@ -71,4 +71,4 @@ jobs:
           gem install bundler --no-document
           WITH_VTERM=1 bundle install
       - name: rake test_yamatanooroti
-        run:  bundle exec rake test_yamatanooroti
+        run: bundle exec rake test_yamatanooroti