Fix tests on newer Sphinx with Python 3.13

Author: domdfcoding

tox.ini

@@ -286,7 +286,7 @@ commands =
     python --version
     python -m pytest --cov=sphinxcontrib.extras_require -r aR tests/ {posargs}
 
-[testenv:py{39,310,311,312,313-dev,py39}-sphinx7.2]
+[testenv:py{39,310,311,312,313,py39}-sphinx7.2]
 setenv =
     PYTHONDEVMODE=1
     PIP_DISABLE_PIP_VERSION_CHECK=1
@@ -299,7 +299,7 @@ commands =
     python --version
     python -m pytest --cov=sphinxcontrib.extras_require -r aR tests/ {posargs}
 
-[testenv:py{39,310,311,312,313-dev,py39}-sphinx7.3]
+[testenv:py{39,310,311,312,313,py39}-sphinx7.3]
 setenv =
     PYTHONDEVMODE=1
     PIP_DISABLE_PIP_VERSION_CHECK=1
@@ -312,7 +312,7 @@ commands =
     python --version
     python -m pytest --cov=sphinxcontrib.extras_require -r aR tests/ {posargs}
 
-[testenv:py{39,310,311,312,313-dev,py39}-sphinx7.4]
+[testenv:py{39,310,311,312,313,py39}-sphinx7.4]
 setenv =
     PYTHONDEVMODE=1
     PIP_DISABLE_PIP_VERSION_CHECK=1
@@ -325,7 +325,7 @@ commands =
     python --version
     python -m pytest --cov=sphinxcontrib.extras_require -r aR tests/ {posargs}
 
-[testenv:py{310,311,312,313-dev}-sphinx8.0]
+[testenv:py{310,311,312,313}-sphinx8.0]
 setenv =
     PYTHONDEVMODE=1
     PIP_DISABLE_PIP_VERSION_CHECK=1
@@ -338,7 +338,7 @@ commands =
     python --version
     python -m pytest --cov=sphinxcontrib.extras_require -r aR tests/ {posargs}
 
-[testenv:py{310,311,312,313-dev}-sphinx8.1]
+[testenv:py{310,311,312,313}-sphinx8.1]
 setenv =
     PYTHONDEVMODE=1
     PIP_DISABLE_PIP_VERSION_CHECK=1
@@ -351,7 +351,7 @@ commands =
     python --version
     python -m pytest --cov=sphinxcontrib.extras_require -r aR tests/ {posargs}
 
-[testenv:py{311,312,313-dev}-sphinx8.2]
+[testenv:py{311,312,313}-sphinx8.2]
 setenv =
     PYTHONDEVMODE=1
     PIP_DISABLE_PIP_VERSION_CHECK=1