Add typing-extensions as it's required in base

mirceaulinic · web-flow · commit d2f9fc5b0029 · 2022-07-11T11:37:37.000+01:00
diff --git a/requirements.txt b/requirements.txt
@@ -16,3 +16,4 @@ ncclient
 ttp
 ttp_templates
 netutils>=1.0.0
+typing-extensions>=4.3.0
