Changed orchestra config HTTP URL variable name

.gitlab-ci.yml

@@ -6,7 +6,7 @@ stages:
 create-binaries:
   stage: build
   script:
-    - git clone "${ORCHESTRA_CONFIG_URL:-https://github.com/revng/orchestra.git}"
+    - git clone "${ORCHESTRA_CONFIG_REPO_HTTP_URL:-https://github.com/revng/orchestra.git}"
     - cd orchestra
     - .orchestra/ci/install-dependencies.sh
     - .orchestra/ci/ci.sh