config: adapt migration logs path

Author: kpsherva

Diff for: cds_migrator_kit/rdm/migration_config.py

@@ -333,7 +333,9 @@ def _(x):  # needed to avoid start time failure with lazy strings
 
 base_path = os.path.dirname(os.path.realpath(cds_migrator_kit.__file__))
 logs_dir = os.path.join(base_path, "tmp/logs/")
-CDS_MIGRATOR_KIT_LOGS_PATH = logs_dir
+CDS_MIGRATOR_KIT_LOGS_PATH = (
+    os.environ.get("INVENIO_CDS_MIGRATOR_KIT_LOGS_PATH") or logs_dir
+)
 
 CDS_MIGRATOR_KIT_STREAM_CONFIG = "cds_migrator_kit/rdm/streams.yaml"