use sphinx 6.2.1 on devel

tests/constraints.in

@@ -1,5 +1,5 @@
 # This constraints file contains pins for the stable, tested versions of sphinx
 # and antsibull-docs that production builds rely upon.
 
-sphinx == 5.3.0
+sphinx == 6.2.1
 antsibull-docs == 2.3.1  # currently approved version

tests/requirements.txt

@@ -1,8 +1,8 @@
 #
-# This file is autogenerated by pip-compile with Python 3.10
+# This file is autogenerated by pip-compile with Python 3.11
 # by the following command:
 #
-#    pip-compile --allow-unsafe --output-file=requirements.txt --strip-extras requirements.in
+#    pip-compile --allow-unsafe --output-file=tests/requirements.txt --strip-extras tests/requirements.in
 #
 aiofiles==23.1.0
     # via antsibull-core
@@ -22,8 +22,8 @@ antsibull-core==2.0.0
     # via antsibull-docs
 antsibull-docs==2.3.1
     # via
-    #   -c constraints.in
-    #   -r requirements.in
+    #   -c tests/constraints.in
+    #   -r tests/requirements-relaxed.in
 antsibull-docs-parser==1.0.0
     # via antsibull-docs
 async-timeout==4.0.2
@@ -60,7 +60,7 @@ imagesize==1.4.1
     # via sphinx
 jinja2==3.1.2
     # via
-    #   -r requirements.in
+    #   -r tests/requirements-relaxed.in
     #   antsibull-docs
     #   sphinx
 markupsafe==2.1.3
@@ -89,19 +89,17 @@ pyproject-hooks==1.0.0
     # via build
 pyyaml==6.0.1
     # via
-    #   -r requirements.in
+    #   -r tests/requirements-relaxed.in
     #   antsibull-core
     #   antsibull-docs
 requests==2.31.0
     # via sphinx
 resolvelib==1.0.1
-    # via
-    #   -c constraints.in
-    #   -r requirements.in
+    # via -r tests/requirements-relaxed.in
 rstcheck==5.0.0
     # via
-    #   -c constraints.in
-    #   -r requirements.in
+    #   -c tests/constraints-base.in
+    #   -r tests/requirements-relaxed.in
     #   antsibull-docs
 semantic-version==2.10.0
     # via
@@ -113,19 +111,19 @@ six==1.16.0
     # via twiggy
 snowballstemmer==2.2.0
     # via sphinx
-sphinx==5.3.0
+sphinx==6.2.1
     # via
-    #   -c constraints.in
-    #   -r requirements.in
+    #   -c tests/constraints.in
+    #   -r tests/requirements-relaxed.in
     #   antsibull-docs
     #   sphinx-ansible-theme
     #   sphinx-notfound-page
     #   sphinx-rtd-theme
     #   sphinxcontrib-jquery
 sphinx-ansible-theme==0.10.2
-    # via -r requirements.in
+    # via -r tests/requirements-relaxed.in
 sphinx-notfound-page==0.8.3
-    # via -r requirements.in
+    # via -r tests/requirements-relaxed.in
 sphinx-rtd-theme==1.2.2
     # via sphinx-ansible-theme
 sphinxcontrib-applehelp==1.0.4
@@ -142,10 +140,6 @@ sphinxcontrib-qthelp==1.0.3
     # via sphinx
 sphinxcontrib-serializinghtml==1.1.5
     # via sphinx
-tomli==2.0.1
-    # via
-    #   build
-    #   pyproject-hooks
 twiggy==0.5.1
     # via
     #   antsibull-core