fix: readd GitHub repo and sha to triggers for pipeline status reporting

This was removed and broke pipelines on the epic repository, where PRs are required to pass reconstruction and physics benchmarks. That requires that this benchmarks can report back their status to the PRs.

.gitlab-ci.yml

@@ -157,6 +157,8 @@ benchmarks:detector:failure:
 benchmarks:reconstruction:
   stage: trigger
   variables:
+    GITHUB_SHA: "${GITHUB_SHA}"
+    GITHUB_REPOSITORY: "${GITHUB_REPOSITORY}"
     DETECTOR: "$DETECTOR"
     DETECTOR_CONFIG: "$DETECTOR_CONFIG"
     DETECTOR_VERSION: "$DETECTOR_VERSION"
@@ -175,6 +177,8 @@ benchmarks:reconstruction:
 benchmarks:physics:
   stage: trigger
   variables:
+    GITHUB_SHA: "${GITHUB_SHA}"
+    GITHUB_REPOSITORY: "${GITHUB_REPOSITORY}"
     DETECTOR: "$DETECTOR"
     DETECTOR_CONFIG: "$DETECTOR_CONFIG"
     DETECTOR_VERSION: "$DETECTOR_VERSION"