fix: rm GITHUB_SHA and GITHUB_REPOSITORY; rely on dotenv

.gitlab-ci.yml

@@ -43,10 +43,6 @@ variables:
   ## Internal tag used for the CI
   INTERNAL_TAG: "pipeline-${CI_PIPELINE_ID}"
 
-  ## Default to empty GitHub trigger callbacks
-  GITHUB_SHA: ""
-  GITHUB_REPOSITORY: ""
-
 stages:
   - status-pending
   - config
@@ -501,8 +497,6 @@ benchmarks:detector:nightly:
     - version
     - jug_xl:nightly
   variables:
-    GITHUB_SHA: "${GITHUB_SHA}"
-    GITHUB_REPOSITORY: "${GITHUB_REPOSITORY}"
     DETECTOR: "epic"
     DETECTOR_CONFIG: epic_craterlake
     DETECTOR_REPOSITORYURL: 'https://github.com/eic/epic.git'