vulnerabilities: update nvdcve file name

The filename is outdated as its version was already bumped and there are
also different files for different feed choices.
Use glob to match any available file.

Also the directory changed to CVE_CHECK2 meanwhile, so Update it, too.

(From yocto-docs rev: a2f18cb23183401d9d8e2fd4499d164ef8d86e44)

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/dev-manual/vulnerabilities.rst

@@ -318,7 +318,7 @@ products defined in :term:`CVE_PRODUCT`. Then, for each found CVE:
 The CVE database is stored in :term:`DL_DIR` and can be inspected using
 ``sqlite3`` command as follows::
 
-   sqlite3 downloads/CVE_CHECK/nvdcve_1.1.db .dump | grep CVE-2021-37462
+   sqlite3 downloads/CVE_CHECK2/nvd*.db .dump | grep CVE-2021-37462
 
 When analyzing CVEs, it is recommended to: