Implement CI release to Rubygems (#12)

Author: Sam Bauch

.ruby-version

@@ -1 +1 @@
-2.7.0
+2.6.5

.semaphore/rubygems.yml

@@ -14,7 +14,11 @@ blocks:
       jobs:
         - name: Publish to Rubygems
           commands:
-            - checkout --use-cache
+            - checkout
+            - sem-version ruby 2.6.5
+            - gem update --system
             - gem install bundler
+            - bundle install
+            - chmod 0600 /home/semaphore/.gem/credentials
             - bundle exec gem build workos --output=release.gem
             - bundle exec gem push release.gem

.semaphore/semaphore.yml

@@ -11,7 +11,7 @@ blocks:
         - name: srb tc
           commands:
             - checkout
-            - sem-version ruby 2.3.4
+            - sem-version ruby 2.6.5
             - gem install bundler
             - bundle install
             - bundle exec srb tc
@@ -21,7 +21,7 @@ blocks:
         - name: rubocop
           commands:
             - checkout
-            - sem-version ruby 2.3.4
+            - sem-version ruby 2.6.5
             - bundle install
             - bundle exec rubocop
   - name: Run Tests 👩🏽‍🔬
@@ -58,7 +58,7 @@ blocks:
             - checkout
             - sem-version ruby 2.6.5
             - bundle install
-            - bundle exec rspec        
+            - bundle exec rspec    
 promotions:
   - name: Deploy workos-rb to rubygems
     pipeline_file: rubygems.yml