python3-httpx2: Upgrade 2.12.0 -> 2.15.1

Upgrade to release 2.15.1:

Highlights:

- Flat CPU usage for long-lived clients on Linux:

On Linux, the default SSL context is now configured once instead of
on every handshake. With OpenSSL older than 3.4, each handshake
added a duplicate certificate lookup path, so CPU usage per request
grew over the lifetime of a reused client. Certificate verification
is unchanged, and Windows and macOS still use truststore.

httpx2:

Fixed:

- Configure the default SSL context once on Linux, instead of on
  every handshake. With OpenSSL older than 3.4, CPU usage grew over
  the lifetime of a reused client (#1253).

httpcore2:

Fixed:

- Configure the default SSL context once on Linux, instead of on
  every handshake. With OpenSSL older than 3.4, CPU usage grew over
  the lifetime of a reused client (#1253).

Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-python/recipes-devtools/python/python3-httpx2_2.15.1.bb

@@ -2,7 +2,7 @@ SUMMARY = "The next generation HTTP client."
 LICENSE = "BSD-3-Clause"
 LIC_FILES_CHKSUM = "file://LICENSE.md;md5=166cfc32dc0986f87a7e950553b52e5e"
 
-SRC_URI[sha256sum] = "7631fe9887a8a2275f4a2540e053aa670fcc50742864a9ae7c66e609fdcf12cf"
+SRC_URI[sha256sum] = "ff75485308fbe441e75b1218546e4e78d884df41e1a9741c1f79335ed8fcfef7"
 
 inherit pypi python_hatchling