Use default working-directory in workflow

Author: jeantessier

.github/workflows/rails_mysql_ci.yml

@@ -11,6 +11,10 @@ env:
   rails_app_root: rails_mysql
   DB_HOST: mysql
 
+defaults:
+  run:
+    working-directory: rails_mysql
+
 jobs:
   scan_ruby:
     runs-on: ubuntu-latest
@@ -27,7 +31,6 @@ jobs:
 
       - name: Scan for common Rails security vulnerabilities using static analysis
         run: ./bin/brakeman --no-pager
-        working-directory: ${{ env.rails_app_root }}
 
   lint:
     runs-on: ubuntu-latest
@@ -44,7 +47,6 @@ jobs:
 
       - name: Lint code for consistent style
         run: ./bin/rubocop -f github
-        working-directory: ${{ env.rails_app_root }}
 
   rspec:
     runs-on: ubuntu-latest
@@ -73,11 +75,9 @@ jobs:
         run: |
           sleep 3 # Waiting to make sure MySQL is up and running
           ./bin/rails db:reset
-        working-directory: ${{ env.rails_app_root }}
 
       - name: Run RSpec
         run: ./bin/rspec --format json --out tmp/rspec_results.json --format progress
-        working-directory: ${{ env.rails_app_root }}
 
       - name: Generate RSpec report
         uses: SonicGarden/rspec-report-action@v5