feat: improve renovate config

[ksimon1]

What this PR does / why we need it:
feat: ignore packages in vendor folder

Renovate identified some other dependencies (e.g. bazel) in vendor folder.
This caused incorrect PRs which bumped bazel dep, without proper update
of go.mod file

fix: replace matchPackagePatterns with matchPackageNames
This change was adviced by triggered renovate run. The matchPackagePatterns attribute is probably deprecated - renovatebot/renovate#28602

 WARN: Config needs migrating
       "configType": "RENOVATE_CONFIG",
       "originalConfig": {
         "$schema": "https://docs.renovatebot.com/renovate-schema.json",
         "baseBranches": [
           "main",
           "/^release-v(([1-9]+\\.([0-9]+))|(0\\.([1-9][0-9]{2,}|[2-9][0-9]|1[6-9])))$/"
         ],
         "prConcurrentLimit": 3,
         "lockFileMaintenance": {"enabled": false},
         "postUpdateOptions": ["gomodTidy"],
         "labels": ["release-note-none"],
         "extends": [":gitSignOff"],
         "packageRules": [
           {
             "groupName": "all dependencies",
             "groupSlug": "all",
             "enabled": false,
             "matchPackagePatterns": ["*"]
           }
         ],
         "vulnerabilityAlerts": {"enabled": true},
         "osvVulnerabilityAlerts": true,
         "assigneesFromCodeOwners": true,
         "separateMajorMinor": true,
         "ignorePaths": ["**/vendor/**"]
       },
       "migratedConfig": {
         "$schema": "https://docs.renovatebot.com/renovate-schema.json",
         "baseBranches": [
           "main",
           "/^release-v(([1-9]+\\.([0-9]+))|(0\\.([1-9][0-9]{2,}|[2-9][0-9]|1[6-9])))$/"
         ],
         "prConcurrentLimit": 3,
         "lockFileMaintenance": {"enabled": false},
         "postUpdateOptions": ["gomodTidy"],
         "labels": ["release-note-none"],
         "extends": [":gitSignOff"],
         "packageRules": [
           {
             "groupName": "all dependencies",
             "groupSlug": "all",
             "enabled": false,
             "matchPackageNames": ["*"]
           }
         ],
         "vulnerabilityAlerts": {"enabled": true},
         "osvVulnerabilityAlerts": true,
         "assigneesFromCodeOwners": true,
         "separateMajorMinor": true,
         "ignorePaths": ["**/vendor/**"]

Release note:

NONE

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[jcanocan]

Thanks for addressing this!
/lgtm

[akrejcir]

/approve

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: akrejcir

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