[deps] Pin sphinx<8.0.0 for docstrfmt compatibility

Adityashandilya555 · Adityashandilya555 · commit f063d92f9556 · 2025-12-09T13:12:01.000+05:30
diff --git a/requirements-test.txt b/requirements-test.txt
@@ -1,2 +1,3 @@
 docker>=7.1.0,<7.2.0
 openwisp-utils[qa,selenium]~=1.2.0
+sphinx<8.0.0
