python3-typing-extensions: upgrade 4.7.1 -> 4.8.0

Changelog:
===========
-Add typing_extensions.Doc, as proposed by PEP 727.
-Drop support for Python 3.7 (including PyPy-3.7).
-Fix bug where get_original_bases() would return incorrect results when called
 on a concrete subclass of a generic class.
-Fix bug where ParamSpec(default=...) would raise a TypeError on Python versions <3.11.

(From OE-Core rev: f35bbd665b52d764376aab4f56a67e2618759ec6)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python3-typing-extensions_4.8.0.bb

@@ -0,0 +1,24 @@
+SUMMARY = "Backported and Experimental Type Hints for Python 3.7+"
+DESCRIPTION = "The typing_extensions module serves two related purposes:\
+\
+* Enable use of new type system features on older Python versions. For \
+  example, typing.TypeGuard is new in Python 3.10, but typing_extensions \
+  allows users on previous Python versions to use it too.\
+* Enable experimentation with new type system PEPs before they are accepted \
+  and added to the typing module."
+HOMEPAGE = "https://github.com/python/typing_extensions"
+BUGTRACKER = "https://github.com/python/typing_extensions/issues"
+SECTIONS = "libs"
+LICENSE = "PSF-2.0"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=fcf6b249c2641540219a727f35d8d2c2"
+
+# The name on PyPi is slightly different.
+PYPI_PACKAGE = "typing_extensions"
+
+SRC_URI[sha256sum] = "df8e4339e9cb77357558cbdbceca33c303714cf861d1eef15e1070055ae8b7ef"
+
+inherit pypi python_flit_core
+
+UPSTREAM_CHECK_REGEX = "/typing-extensions/(?P<pver>(\d+[\.\-_]*)+)/"
+
+BBCLASSEXTEND = "native nativesdk"