devel/golangci-lint*: upgrade to 2.0.2 & fork/upgrade to 1.64.8

[ngie]

Summary

This change upgrades devel/golintci-lint from 1.62.2 to 2.0.2. Given
that newer versions of golangci-lint aren't backwards compatible,
require configuration migration, and emit more errors than the 1.x
series, fork devel/golintci-lint 1.62.2 as devel/golintci-lint1 and
upgrade the version to the latest 1.62.x release. This is being done to
allow multiple consumers to continue using golangci-lint in their CI
workflows without unnecessary breakage.

Both versions require a newer version of go (1.23+). Bump the version
referenced in USES+= go to support this change.

Release notes for golintci-lint 1.64.4 and 2.0.2 can be found in the
project changelog.

Requires: D49723.

PR: 285969
Signed-off-by: Enji Cooper <[e-mail]>

Test Plan

• Tried installing both: ports properly detected the conflict.
• Installed 2.0.2 successfully, but it failed when running the newer version for various linting-related reasons.

[ngie]

Oof... 2.0.2 really finds a lot more issues in code (for better or worse). containerd for instance passes on 1.65.x, but fails on 2.0.2.
Also, 2.0.2 required a config migration (like tox), so it might make more sense to split up the package into 2 different versions.

[ngie]

• Fork 1.x from 2.x
• Upgrade 1.x from 1.62.2 to 1.64.8

[ngie]

Update CONFLICTS_INSTALL to handle the 1.x to 2.x hop cleanly, while forbidding
*-lint1 and *-lint from being installed together.

[ngie]

Fix CONFLICTS definition per the Porter's Handbook section on "Using CONFLICTS* With Globs."