fix: specify correct ruby version

.github/workflows/ci-tests-api.yml

@@ -2,9 +2,9 @@ name: CI tests-api
 on:
   push:
     branches:
-      - '**'
+      - "**"
     tags-ignore:
-      - '**'
+      - "**"
 jobs:
   test:
     runs-on: ubuntu-18.04
@@ -14,25 +14,25 @@ jobs:
         image: postgres:12.2-alpine
         env:
           POSTGRES_PASSWORD: password
-        ports: ['5432:5432']
+        ports: ["5432:5432"]
         options: >-
           --health-cmd pg_isready
           --health-interval 10ms
           --health-timeout 500ms
           --health-retries 15
       redis:
         image: redis:5
-        ports: ['6379:6379']
+        ports: ["6379:6379"]
         options: --entrypoint redis-server
 
     steps:
       - name: Checkout
         uses: actions/checkout@v2
-        
+
       - name: Setup Ruby
         uses: actions/setup-ruby@v1
         with:
-          ruby-version: 2.7
+          ruby-version: "2.7.1"
 
       - name: Ruby gem cache
         uses: actions/cache@v1
@@ -58,7 +58,7 @@ jobs:
           cd tests-api
           bundle exec bundler-audit --update
           bundle exec brakeman -q -w2
-          
+
       - name: Build and run tests
         env:
           DATABASE_URL: postgres://postgres:password@localhost:5432/ci_tests_api