Try a reusable workflow.

Author: ioquatix

.github/actions/test-environment/action.yaml

@@ -1,4 +1,4 @@
-name: Test External
+name: RuboCop
 
 on: [push, pull_request]
 

.github/workflows/rubocop.yaml

@@ -30,7 +30,7 @@ jobs:
         bundler-cache: true
 
     - name: Setup test environment
-      uses: ./.github/actions/test-environment
+      uses: ./test-setup.yaml
 
     - name: Run tests
       timeout-minutes: 5

.github/workflows/test-coverage.yaml

@@ -31,7 +31,7 @@ jobs:
         bundler-cache: true
 
     - name: Setup test environment
-      uses: ./.github/actions/test-environment
+      uses: ./test-setup.yaml
 
     - name: Run tests
       timeout-minutes: 10

.github/workflows/test-external.yaml

@@ -0,0 +1,28 @@
+on:
+  workflow_call:
+
+jobs:
+  setup:
+    runs-on: ubuntu-latest
+    
+    services:
+      mariadb:
+        image: mariadb
+        ports:
+          - 3306:3306
+        env:
+          MYSQL_USER: test
+          MYSQL_PASSWORD: test
+          MYSQL_DATABASE: test
+          MYSQL_ROOT_PASSWORD: test
+        options: >-
+          --health-cmd "mysqladmin ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 20
+    
+    steps:
+      - name: Installing dependencies (ubuntu)
+        run: |
+          sudo systemctl stop mysql
+          sudo apt-get install libmariadb-dev

.github/workflows/test-setup.yaml

@@ -45,7 +45,7 @@ jobs:
         bundler-cache: true
 
     - name: Setup test environment
-      uses: ./.github/actions/test-environment
+      uses: ./test-setup.yaml
 
     - name: Run tests
       timeout-minutes: 10