upgrade invenio-search

Author: Tamas Nyiri

setup.py

@@ -72,10 +72,9 @@
 
 INSTALL_REQUIRES = [
     'autosemver~=0.2,>=0.2',
-    'elasticsearch-dsl~=7.0',
     'Flask-BabelEx>=0.9.2',
     'invenio-access~=1.0,>=1.0.1',
-    'invenio-search>=1.0.0a5',
+    'invenio-search[elasticsearch7]~=1.0,>=1.1.1',
     'invenio-indexer>=1.0.0a5',
     'invenio-rest',
     'flask-login',