Set LGTM_INDEX_IMPORT_PATH in two tests

This is needed for Dep and Glide

Author: owen-mc

go/ql/integration-tests/linux-only/go/dep-sample/test.py

@@ -1,5 +1,7 @@
+import os
 import sys
 
 from create_database_utils import *
 
+os.environ['LGTM_INDEX_IMPORT_PATH'] = "deptest"
 run_codeql_database_create([], lang="go")

go/ql/integration-tests/linux-only/go/glide-sample/test.py

@@ -1,5 +1,7 @@
+import os
 import sys
 
 from create_database_utils import *
 
+os.environ['LGTM_INDEX_IMPORT_PATH'] = "glidetest"
 run_codeql_database_create([], lang="go")