fix: suppress revive var-naming lint errors for metrics and plugin package names

[Copilot]

golangci-lint v2.10.1 introduced a stricter revive var-naming rule that flags package names conflicting with Go standard library names. Two packages in this repo trip this rule: metrics and plugin.

Changes

• metrics/metrics.go — add //nolint:revive to package declaration
• pb/plugin/v3/arrow_test.go — add //nolint:revive to package declaration

Renaming these packages would be a breaking API change; inline suppression is the minimal fix.

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[Copilot]

Just as a heads up, I was blocked by some firewall rules while working on your feedback. Expand below for details.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• api.cloudquery.io
  • Triggering command: /tmp/go-build1419120576/b058/managedplugin.test /tmp/go-build1419120576/b058/managedplugin.test -test.testlogfile=/tmp/go-build1419120576/b058/testlog.txt -test.paniconexit0 -test.timeout=10m0s /tmp/go-build1419120576/b307/vet.cfg submodules | heaIlJ__Wu3yPWTexD7dPDP/IlJ__Wu3yPWTexD7dPDP cgo .2/x64/codeql/cogo1.24.13 (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)