Resolve "Improve pipeline speed"

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

Closes #126 (closed)

build/ci/.test.yml

 .integration-test: &integration-test
-  image: golang:1.16
+  image: registry.code.fbi.h-da.de/cocsn/gosdn:testing_${CI_PIPELINE_ID}
   stage: integration-test
   needs:
     - job: "containerlab:deploy"
@@ -36,8 +36,6 @@ integration-test:api:
 .test: &test
   image: registry.code.fbi.h-da.de/cocsn/gosdn:testing_${CI_PIPELINE_ID}
   stage: test
-  tags: 
-    - docker-builder
   allow_failure: true
   variables:
     GOSDN_LOG: "nolog"
@@ -49,19 +47,6 @@ integration-test:api:
     - if: $CI_COMMIT_BRANCH != $CI_DEFAULT_BRANCH
       allow_failure: true
 
-#unit_testing:
-#  before_script:
-#    - echo "override global before script"
-#  stage: test
-#  allow_failure: false
-#  needs: ["build_testing"]
-#  tags:
-#    - shell-builder
-#  script:
-#    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
-#    - docker pull registry.code.fbi.h-da.de/cocsn/gosdn:testing_${CI_PIPELINE_ID}
-#    - docker run registry.code.fbi.h-da.de/cocsn/gosdn:testing_${CI_PIPELINE_ID} ./run_tests.sh
-
 unit-test:
   script:
     - go test -short -race $(go list ./... | grep -v /forks/ | grep -v /api/ | grep -v /mocks ) -v -coverprofile=coverage.out
@@ -70,7 +55,7 @@ unit-test:
   <<: *test
 
 controller-test:
+  image: golang:1.16
   script:
-    - ls
     - go test -race -v -run TestRun
   <<: *test