Replace remaining py39 target

kajinamit · kajinamit · commit 5e9be946ecb4 · 2025-10-13T02:55:12.000+09:00
... because Python 3.9 is no longer supported.

Change-Id: Ibe68739a1bbcc6a745e3c6fd5ecf9f832c0bf002
Signed-off-by: Takashi Kajinami &lt;kajinamit@oss.nttdata.com&gt;
diff --git a/tox.ini b/tox.ini
@@ -75,7 +75,7 @@ deps =
 commands =
   sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
-[testenv:functional{,-py39,-py310,-py311,-py312}]
+[testenv:functional{,-py310,-py311,-py312,-py313}]
 description =
   Run functional tests.
 passenv =
