Use 2.6.10 ruby version

Author: thisismydesign

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
 
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.6.x
+          ruby-version: 2.6.10
           bundler-cache: true
 
       - name: Test
@@ -29,7 +29,7 @@ jobs:
 
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.6.x
+          ruby-version: 2.6.10
           bundler-cache: true
 
       - name: Build