Use dh-sequence-sphinxdoc; update d/*.docs for new upstream version

debian/changelog

@@ -2,7 +2,7 @@ python-watchdog (2.2.1-1) unstable; urgency=medium
 
   * New upstream version
 
- -- Julian Gilbey <jdg@debian.org>  Wed, 18 Jan 2023 07:08:15 +0000
+ -- Julian Gilbey <jdg@debian.org>  Wed, 18 Jan 2023 07:14:02 +0000
 
 python-watchdog (2.1.9-1) unstable; urgency=medium
 

debian/control

@@ -6,6 +6,7 @@ Uploaders: gustavo panizzo <gfa@zumbi.com.ar>,
            Julian Gilbey <jdg@debian.org>
 Build-Depends: debhelper-compat (= 13),
                dh-sequence-python3,
+               dh-sequence-sphinxdoc,
                python3-all,
                python3-eventlet <!nocheck>,
                python3-flaky <!nocheck>,

debian/python3-watchdog.docs

 AUTHORS
 README.rst
-docs/echo.py.txt

debian/rules

@@ -4,7 +4,7 @@ export PYBUILD_NAME=watchdog
 
 ifeq (,$(findstring nodoc,$(DEB_BUILD_OPTIONS)))
 %:
-	dh $@ --with sphinxdoc --buildsystem=pybuild
+	dh $@ --buildsystem=pybuild
 
 override_dh_sphinxdoc:
 	python3 -m sphinx -b man docs/source docs/build/man