Update config.yml

Check on circle ci

Author: nmammadli

.circleci/config.yml

@@ -927,7 +927,7 @@ workflows:
       - e2e-tests:
           name: E2ETest
           build: docker
-          parallelism: 4
+          parallelism: 1
           requires:
             - Build docker image
   # Workflow for feature, bugfix, main branches
@@ -973,7 +973,7 @@ workflows:
       - e2e-tests:
           name: E2ETest
           build: docker
-          parallelism: 4
+          parallelism: 1
           requires:
             - Build docker image
       # Approve to build
@@ -1061,7 +1061,7 @@ workflows:
       - e2e-tests:
           name: E2ETest
           build: docker
-          parallelism: 4
+          parallelism: 1
           requires:
             - Build docker image
 
@@ -1223,7 +1223,7 @@ workflows:
       # e2e web tests on docker image build
       - e2e-tests:
           name: E2ETest - Nightly
-          parallelism: 4
+          parallelism: 1
           build: docker
           report: true
           requires: