Added self-hosted runner

.github/workflows/ci-tests.yml

@@ -3,7 +3,7 @@ run-name: ${{ github.actor }} is running tests 🚀
 on: [push, pull_request]
 jobs:
   Frontend-tests:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     steps:
       - uses: actions/checkout@v4
 
@@ -37,7 +37,7 @@ jobs:
         working-directory: ./frontend
         run: npm run lint
   Backend-tests:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     steps:
       - uses: actions/checkout@v4
 
@@ -59,4 +59,4 @@ jobs:
         working-directory: ./backend
         run: pylint ./*/*.py
 
-
+