Update renovate to work with master branch

See merge request !443

.gitlab/ci/.renovate.yml

@@ -5,10 +5,10 @@ renovate:
 
     variables:
         LOG_LEVEL: debug
-        RENOVATE_BASE_BRANCHES: "develop"
+        RENOVATE_BASE_BRANCHES: "master"
 
     script:
         - renovate $RENOVATE_EXTRA_FLAGS
 
     rules:
-        - if: '$CI_PIPELINE_SOURCE == "schedule" && $CI_NIGHTLY == "develop"'
+        - if: '$CI_PIPELINE_SOURCE == "schedule" && $CI_NIGHTLY == "mainline"'

renovate.json

@@ -30,5 +30,5 @@
     "prConcurrentLimit": 10,
     "commitMessagePrefix": "[renovate]",
     "labels": ["renovate"],
-    "baseBranches": ["develop"]
+    "baseBranches": ["master"]
 }