Update remaining 7.0 references (#8834)

Author: The-Compiler

doc/en/changelog.rst

@@ -119,7 +119,7 @@ Deprecations
   - ``_pytest.tmpdir.TempPathFactory``
   - ``_pytest.tmpdir.TempdirFactory``
 
-  These have always been considered private, but now issue a deprecation warning, which may become a hard error in pytest 7.0.0.
+  These have always been considered private, but now issue a deprecation warning, which may become a hard error in pytest 8.0.0.
 
 
 - `#7530 <https://github.com/pytest-dev/pytest/issues/7530>`_: The ``--strict`` command-line option has been deprecated, use ``--strict-markers`` instead.
@@ -205,7 +205,7 @@ Improvements
   - ``pytest.WarningsRecorder`` for the :fixture:`recwarn` fixture.
 
   Constructing them is not supported (except for `MonkeyPatch`); they are only meant for use in type annotations.
-  Doing so will emit a deprecation warning, and may become a hard-error in pytest 7.0.
+  Doing so will emit a deprecation warning, and may become a hard-error in pytest 8.0.
 
   Subclassing them is also not supported. This is not currently enforced at runtime, but is detected by type-checkers such as mypy.
 

testing/test_recwarn.py

@@ -318,7 +318,7 @@ def test_record_only(self) -> None:
         assert str(record[1].message) == "runtime"
 
     def test_record_only_none_deprecated_warn(self) -> None:
-        # This should become an error when WARNS_NONE_ARG is removed in Pytest 7.0
+        # This should become an error when WARNS_NONE_ARG is removed in Pytest 8.0
         with warnings.catch_warnings():
             warnings.simplefilter("ignore")
             with pytest.warns(None) as record:  # type: ignore[call-overload]