added openSUSE Tumbleweed version detection

[msmeissn]

(Tumbleweed has no version as it is rolling)

https://github.com/aquasecurity/trivy-db/issues/410

[CLAassistant]

All committers have signed the CLA.

[msmeissn]

will do

[msmeissn]

I got it make lint clean.

I added a openSUSE Tumbleweed testcase, "make check" works (only FAILS in the GHSA parts).

[knqyf263]

@DmitriyLewen Did you build trivy-db and it looked fine?

[DmitriyLewen]

Yes. Looks good. openSUSE Tumbleweed contains a lot of buckets, but I've now rechecked and it looks as expected.

[knqyf263]

Oh, 17,376 buckets. How about the database size?

[DmitriyLewen]

• 0.6 MB before unzip
• 16 MB after unzip

➜  ls -l ./assets    
total 517492
-rw-rw-r-- 1 dmitriy dmitriy  51106757 июн 26 12:34 db.tar.gz
-rw-rw-r-- 1 dmitriy dmitriy       143 июн 26 12:34 metadata.json
-rw------- 1 dmitriy dmitriy 480534528 июн 26 12:34 trivy.db
➜  ls -l ./assets-new
total 536156
-rw-rw-r-- 1 dmitriy dmitriy  51696853 июн 26 12:13 db.tar.gz
-rw-rw-r-- 1 dmitriy dmitriy       143 июн 26 09:59 metadata.json
-rw------- 1 dmitriy dmitriy 497311744 июн 26 09:59 trivy.db

[knqyf263]

• 0.6 MB before unzip
• 16 MB after unzip

➜  ls -l ./assets    
total 517492
-rw-rw-r-- 1 dmitriy dmitriy  51106757 июн 26 12:34 db.tar.gz
-rw-rw-r-- 1 dmitriy dmitriy       143 июн 26 12:34 metadata.json
-rw------- 1 dmitriy dmitriy 480534528 июн 26 12:34 trivy.db
➜  ls -l ./assets-new
total 536156
-rw-rw-r-- 1 dmitriy dmitriy  51696853 июн 26 12:13 db.tar.gz
-rw-rw-r-- 1 dmitriy dmitriy       143 июн 26 09:59 metadata.json
-rw------- 1 dmitriy dmitriy 497311744 июн 26 09:59 trivy.db

Looks reasonable.