ci: fix publish (#4)

Author: Amir Blum

.github/workflows/publish.yml

@@ -21,19 +21,15 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
 
-      - name: CD into gem directory
-        run: cd ${{ github.event.inputs.dir }}
-
-      - name: Bundle Install
-        run: bundle install
-
       - name: Publish gem
         run: |
           mkdir -p $HOME/.gem
           touch $HOME/.gem/credentials
           chmod 0600 $HOME/.gem/credentials
           printf -- "---\n:rubygems_api_key: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
+          bundle install
           gem build *.gemspec
           gem push *.gem
         env:
           GEM_HOST_API_KEY: "${{secrets.RUBYGEMS_API_KEY}}"
+        working-directory: ${{ github.event.inputs.dir }}