python3-py: correct CVE_PRODUCT mapping

The product-only "py" mapping generates a wildcard-vendor identity
instead of the exact NVD identity for the packaged pytest-dev py
source. Use "pytest:py" for its NVD dictionary CPE and configuration
matches.

This changes the generated product identity. With sbom-cve-check 1.3.3,
the current CVE report is unchanged using the pinned database snapshots;
both mappings report CVE-2020-29651 and CVE-2022-42969.

(From OE-Core rev: 936d774b3cf1958c210d3fbb78b91fdafcf5fe15)

Signed-off-by: Devansh Patel <devanshp@cisco.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>
(cherry picked from commit 26fa8b053b71d1f3f8da359abaef578c671c692f)
Signed-off-by: Darsh Kelaiya <dkelaiya@cisco.com>
Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
[YC: This is a cherry-pick from meta-openembedded]
Signed-off-by: Paul Barker <paul@pbarker.dev>

meta/recipes-devtools/python/python3-py_1.11.0.bb

@@ -5,7 +5,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=a6bb0320b04a0a503f12f69fea479de9"
 
 SRC_URI[sha256sum] = "51c75c4126074b472f746a24399ad32f6053d1b34b68d2fa41e558e6f4a98719"
 
-CVE_PRODUCT = "py"
+CVE_PRODUCT = "pytest:py"
 
 DEPENDS += "python3-setuptools-scm-native"