cve_manager is not importing all CPEs for current CVEs

[axel-sch]

It was observed that the import of CPEs is done only partially in CVE manager. Important CPEs for OS are mostly missing.
The JSON ZIP file from are correclty download and also those JSON files have the CVEs with the correct CPEs assigned. But the import function of CVE Manager does not import all CPEs.

Following example CPEs are affected:

• cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*

Those example CVE's doesn't have a CPE link to the above list (just a cut-out):

• Linux Kernel: CVE-2021-33034,CVE-2021-33033,CVE-2021-32606,CVE-2021-32399,CVE-2021-31916,CVE-2021-31829,CVE-2021-31440,CVE-2021-23134,CVE-2021-3501,CVE-2021-3483
• Windows Server 2016: CVE-2021-28447,CVE-2021-28446,CVE-2021-28445,CVE-2021-28444,CVE-2021-28443,CVE-2021-28442,CVE-2021-28441,CVE-2021-28440,CVE-2021-28439,CVE-2021-28438,CVE-2021-28437,CVE-2021-28436,CVE-2021-28435,CVE-2021-28434,CVE-2021-28358,CVE-2021-28357,CVE-2021-28356
• Windows 10: CVE-2021-28447,CVE-2021-28446,CVE-2021-28445,CVE-2021-28444,CVE-2021-28443,CVE-2021-28442,CVE-2021-28441,CVE-2021-28440,CVE-2021-28439,CVE-2021-28438,CVE-2021-28437,CVE-2021-28436,CVE-2021-28435,CVE-2021-28434,CVE-2021-28358,CVE-2021-28357,CVE-2021-28356,CVE-2021-28355,CVE-2021-28354,CVE-2021-28353,CVE-2021-28352
  Windows Server 2016: CVE-2021-28447,CVE-2021-28446,CVE-2021-28445,CVE-2021-28444,CVE-2021-28443,CVE-2021-28442,CVE-2021-28441,CVE-2021-28440,CVE-2021-28439,CVE-2021-28438,CVE-2021-28437,CVE-2021-28436,CVE-2021-28435,CVE-2021-28434,CVE-2021-28358,CVE-2021-28357,CVE-2021-28356
  Windows 10: CVE-2021-28447,CVE-2021-28446,CVE-2021-28445,CVE-2021-28444,CVE-2021-28443,CVE-2021-28442,CVE-2021-28441,CVE-2021-28440,CVE-2021-28439,CVE-2021-28438,CVE-2021-28437,CVE-2021-28436,CVE-2021-28435,CVE-2021-28434,CVE-2021-28358,CVE-2021-28357,CVE-2021-28356,CVE-2021-28355,CVE-2021-28354,CVE-2021-28353,CVE-2021-28352