python3-gnupg: upgrade 0.5.5 -> 0.5.6

The 0.5.6 source tarball on PyPI now uses the PEP 625 name
python_gnupg-0.5.6.tar.gz.

- Set PYPI_PACKAGE to "python_gnupg"
- Set S explicitly, since the archive still unpacks to
  python-gnupg-${PV}
- Set CVE_PRODUCT to "python:python-gnupg" so CVE matching still
  works after the PYPI_PACKAGE change

Changelog:
https://github.com/vsajip/python-gnupg/releases/tag/0.5.6

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-python/recipes-devtools/python/python3-gnupg_0.5.6.bb

@@ -3,11 +3,15 @@ SECTION = "devel/python"
 LICENSE = "BSD-3-Clause"
 LIC_FILES_CHKSUM = "file://LICENSE.txt;md5=5dabe659eadd6d97325b1582e41cfc11"
 
-PYPI_PACKAGE = "python-gnupg"
-SRC_URI[sha256sum] = "3fdcaf76f60a1b948ff8e37dc398d03cf9ce7427065d583082b92da7a4ff5a63"
+PYPI_PACKAGE = "python_gnupg"
+SRC_URI[sha256sum] = "5743e96212d38923fc19083812dc127907e44dbd3bcf0db4d657e291d3c21eac"
+
+CVE_PRODUCT = "python:python-gnupg"
 
 inherit pypi python_setuptools_build_meta
 
+S = "${UNPACKDIR}/python-gnupg-${PV}"
+
 DEPENDS += "python3-wheel-native"
 
 RDEPENDS:${PN} +=  " \