Remove unneeded js steps from dependabot-ruby.yml

.github/workflows/dependabot-ruby.yml

@@ -20,20 +20,6 @@ jobs:
       - uses: actions/checkout@v2
         with:
           token: ${{ secrets.NOTICE_WORKER_PAT }}
-      - uses: actions/setup-node@v1.4.4
-        with:
-          node-version: ${{ matrix.node }}
-      - name: Get yarn cache directory path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-
-      - uses: actions/cache@v2
-        id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ matrix.os }}-yarn-${{ matrix.node }}-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ matrix.os }}-yarn-${{ matrix.node }}-
       - run: yarn install --frozen-lockfile
       - uses: ruby/setup-ruby@v1
         with:
@@ -48,7 +34,6 @@ jobs:
       - run: |
           bundle config path vendor/bundle
           bundle install --jobs 4
-      - run: bin/setup ci
       - name: rebuild NOTICE-ruby
         run: bin/rails notice:ruby:update
       - name: commit and push to branch