fix(oval): add pseudo server type in NewOVALClient

[MaineK00n]

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What did you implement:

Fixes #2253

In this commit, ServerTypePseudo was removed from NewOVALClient:
9c8fd04#diff-c38ba8400657a4caf68a8813319549c02e254e9ccb12099f6d3dba39bbf81ddeL688-L689

As a result, an error occurred when opening the database before starting the server, because the family used at that time was ServerTypePseudo:
28e3ff5#diff-ba4491525d7251d0ed3fa7f42df81f3150fa73551b7b4923bd45b14bd283e299R274

Therefore, this PR adds ServerTypePseudo back to NewOVALClient.

Note that this error does not occur during reporting because pseudo servers skip OVAL processing:

vuls/detector/detector.go

Lines 380 to 382 in c40e7e8

	case constant.FreeBSD, constant.MacOSX, constant.MacOSXServer, constant.MacOS, constant.MacOSServer, constant.ServerTypePseudo:
	logging.Log.Infof("%s type. Skip OVAL, gost and vuls2 detection", r.Family)
	return false

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

before

$ vuls server
[Jul  1 10:55:41]  INFO [localhost] vuls-0.33.1-c40e7e8eb0049076bdded96a5d8b045428ef04cb-2025-06-25T04:33:59Z
[Jul  1 10:55:41]  INFO [localhost] Validating config...
[Jul  1 10:55:41]  INFO [localhost] cveDict.type=sqlite3, cveDict.url=, cveDict.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/cve.sqlite3
[Jul  1 10:55:41]  INFO [localhost] ovalDict.type=sqlite3, ovalDict.url=, ovalDict.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/goval-dictionary/oval.sqlite3
[Jul  1 10:55:41]  INFO [localhost] gost.type=sqlite3, gost.url=, gost.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/gost.sqlite3
[Jul  1 10:55:41]  INFO [localhost] exploit.type=sqlite3, exploit.url=, exploit.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/go-exploitdb.sqlite3
[Jul  1 10:55:41]  INFO [localhost] metasploit.type=sqlite3, metasploit.url=, metasploit.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/go-msfdb.sqlite3
[Jul  1 10:55:41]  INFO [localhost] kevuln.type=sqlite3, kevuln.url=, kevuln.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/go-kev.sqlite3
[Jul  1 10:55:41]  INFO [localhost] cti.type=sqlite3, cti.url=, cti.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/go-cti.sqlite3
[Jul  1 10:55:41]  INFO [localhost] Validating DBs...
[Jul  1 10:55:41] ERROR [localhost] Failed to validate DBs. err: Failed to new OVAL client. err:
    github.com/future-architect/vuls/detector.ValidateDBs
        github.com/future-architect/vuls/detector/util.go:276
  - OVAL for pseudo is not implemented yet:
    github.com/future-architect/vuls/oval.NewOVALClient
        github.com/future-architect/vuls/oval/util.go:536

after

$ vuls server
[Jul  1 10:56:24]  INFO [localhost] vuls-v0.33.1-build-20250701_105326_64dffcf
[Jul  1 10:56:24]  INFO [localhost] Validating config...
[Jul  1 10:56:24]  INFO [localhost] cveDict.type=sqlite3, cveDict.url=, cveDict.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/cve.sqlite3
[Jul  1 10:56:24]  INFO [localhost] ovalDict.type=sqlite3, ovalDict.url=, ovalDict.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/goval-dictionary/oval.sqlite3
[Jul  1 10:56:24]  INFO [localhost] gost.type=sqlite3, gost.url=, gost.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/gost.sqlite3
[Jul  1 10:56:24]  INFO [localhost] exploit.type=sqlite3, exploit.url=, exploit.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/go-exploitdb.sqlite3
[Jul  1 10:56:24]  INFO [localhost] metasploit.type=sqlite3, metasploit.url=, metasploit.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/go-msfdb.sqlite3
[Jul  1 10:56:24]  INFO [localhost] kevuln.type=sqlite3, kevuln.url=, kevuln.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/go-kev.sqlite3
[Jul  1 10:56:24]  INFO [localhost] cti.type=sqlite3, cti.url=, cti.SQLite3Path=/home/mainek00n/github/github.com/MaineK00n/vuls/go-cti.sqlite3
[Jul  1 10:56:24]  INFO [localhost] Validating DBs...
[Jul  1 10:56:24]  INFO [localhost] Listening on localhost:5515

$ curl -s http://localhost:5515/health
ok

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Is this ready for review?: YES

Reference

[shino]

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