Port to Sphinx 8.0

Closes: #1090128

debian/changelog

+python-aiohttp-session (2.12.1-2) UNRELEASED; urgency=medium
+
+  * Port to Sphinx 8.0 (closes: #1090128).
+
+ -- Colin Watson <cjwatson@debian.org>  Wed, 18 Dec 2024 15:33:14 +0000
+
 python-aiohttp-session (2.12.1-1) unstable; urgency=medium
 
   * Team upload.

debian/patches/series

 privacy-breach-fixes.patch
+sphinx-8.0.patch
 use-local-docs-for-intersphinx-links.patch

debian/patches/sphinx-8.0.patch

+From: Colin Watson <cjwatson@debian.org>
+Date: Wed, 18 Dec 2024 15:30:25 +0000
+Subject: Port to Sphinx 8.0
+
+The old `intersphinx_mapping` format has been removed; it must now map
+identifiers to (target, inventory) tuples.
+
+Forwarded: https://github.com/aio-libs/aiohttp-session/pull/1047
+Bug-Debian: https://bugs.debian.org/1090128
+Last-Update: 2024-12-18
+---
+ docs/conf.py | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/docs/conf.py b/docs/conf.py
+index bed5f85..c6ee4c2 100644
+--- a/docs/conf.py
++++ b/docs/conf.py
+@@ -341,10 +341,10 @@ texinfo_documents = [
+ 
+ # Example configuration for intersphinx: refer to the Python standard library.
+ intersphinx_mapping = {
+-    "https://docs.python.org/3": None,
+-    "https://aiohttp.readthedocs.io/en/stable": None,
+-    "https://redis.readthedocs.io/en/latest": None,
+-    # 'https://github.com/aio-libs/aiomcache': None,
+-    "http://cryptography.io/en/latest": None,
+-    "https://pynacl.readthedocs.io/en/latest": None,
++    "python": ("https://docs.python.org/3", None),
++    "aiohttp": ("https://aiohttp.readthedocs.io/en/stable", None),
++    "redis": ("https://redis.readthedocs.io/en/latest", None),
++    # "aiomcache": ("https://github.com/aio-libs/aiomcache", None),
++    "cryptography": ("http://cryptography.io/en/latest", None),
++    "pynacl": ("https://pynacl.readthedocs.io/en/latest", None),
+ }

debian/patches/use-local-docs-for-intersphinx-links.patch

@@ -3,26 +3,24 @@ Date: Tue, 30 Apr 2024 18:13:32 +0100
 Subject: use local docs for intersphinx links
 
 Origin: vendor
-Last-Update: 2019-12-22
-
-Last-Update: 2019-12-22
+Last-Update: 2024-12-18
 ---
  docs/conf.py | 7 +------
  1 file changed, 1 insertion(+), 6 deletions(-)
 
 diff --git a/docs/conf.py b/docs/conf.py
-index bed5f85..1a47e27 100644
+index c6ee4c2..a2d1223 100644
 --- a/docs/conf.py
 +++ b/docs/conf.py
 @@ -341,10 +341,5 @@ texinfo_documents = [
  
  # Example configuration for intersphinx: refer to the Python standard library.
  intersphinx_mapping = {
--    "https://docs.python.org/3": None,
--    "https://aiohttp.readthedocs.io/en/stable": None,
--    "https://redis.readthedocs.io/en/latest": None,
--    # 'https://github.com/aio-libs/aiomcache': None,
--    "http://cryptography.io/en/latest": None,
--    "https://pynacl.readthedocs.io/en/latest": None,
-+    '/usr/share/doc/python3-doc/html': None,
+-    "python": ("https://docs.python.org/3", None),
+-    "aiohttp": ("https://aiohttp.readthedocs.io/en/stable", None),
+-    "redis": ("https://redis.readthedocs.io/en/latest", None),
+-    # "aiomcache": ("https://github.com/aio-libs/aiomcache", None),
+-    "cryptography": ("http://cryptography.io/en/latest", None),
+-    "pynacl": ("https://pynacl.readthedocs.io/en/latest", None),
++    "python": ("/usr/share/doc/python3-doc/html", None),
  }