👷(CI) add test-e2e job to people.yml

Add test-e2e to people.yml, it will run e2e tests on every PR.
Steps:
  - set env vars for e2e tests
  - build and start docker servers
  (backend, keycloak, DB)
  - install playwright
  - build apps
  - run e2e tests
  - save reports

docker/auth/realm.json

@@ -56,6 +56,19 @@
           "realmRoles": [
               "user"
           ]
+      },
+      {
+        "username": "user-e2e",
+        "enabled": true,
+        "credentials": [
+            {
+                "type": "password",
+                "value": "password-e2e"
+            }
+        ],
+        "realmRoles": [
+            "user"
+        ]
       }
     ],
     "roles": {
@@ -2259,4 +2272,5 @@
     "clientPolicies": {
       "policies": []
     }
-  }
+  }
+