Bump hypothesis-python version to 6.54.0 and update changelog

[skip ci]

Author: DRMacIver

hypothesis-python/RELEASE.rst

@@ -18,6 +18,21 @@ Hypothesis 6.x
 
     .. include:: ../RELEASE.rst
 
+.. _v6.54.0:
+
+-------------------
+6.54.0 - 2022-08-02
+-------------------
+
+Reporting of :obj:`multiple failing examples <hypothesis.settings.report_multiple_bugs>`
+now uses the :pep:`654` `ExceptionGroup <https://docs.python.org/3.11/library/exceptions.html#ExceptionGroup>`__ type, which is provided by the
+:pypi:`exceptiongroup` backport on Python 3.10 and earlier (:issue:`3175`).
+``hypothesis.errors.MultipleFailures`` is therefore deprecated.
+
+Failing examples and other reports are now stored as :pep:`678` exception notes, which
+ensures that they will always appear together with the traceback and other information
+about their respective error.
+
 .. _v6.53.0:
 
 -------------------

hypothesis-python/docs/changes.rst

@@ -132,7 +132,7 @@ def __getattr__(name):
         note_deprecation(
             "MultipleFailures is deprecated; use the builtin `BaseExceptionGroup` type "
             "instead, or `exceptiongroup.BaseExceptionGroup` before Python 3.11",
-            since="RELEASEDAY",
+            since="2022-08-02",
             has_codemod=False,  # This would be a great PR though!
         )
         return BaseExceptionGroup

hypothesis-python/src/hypothesis/errors.py

@@ -8,5 +8,5 @@
 # v. 2.0. If a copy of the MPL was not distributed with this file, You can
 # obtain one at https://mozilla.org/MPL/2.0/.
 
-__version_info__ = (6, 53, 0)
+__version_info__ = (6, 54, 0)
 __version__ = ".".join(map(str, __version_info__))