Bump Cockpit test API to 196

No changes needed.

Makefile

@@ -143,7 +143,7 @@ bots:
 # checkout Cockpit's test API; this has no API stability guarantee, so check out a stable tag
 # when you start a new project, use the latest relese, and update it from time to time
 test/common:
-	git fetch --depth=1 https://github.com/cockpit-project/cockpit.git 192
+	git fetch --depth=1 https://github.com/cockpit-project/cockpit.git 196
 	git checkout --force FETCH_HEAD -- test/common
 	git reset test/common