Remove GITHB_TOKEN from linter args

[bstoll]

Remove the GITHUB_TOKEN from the linter action. The token is used to write updates to the GitHub status API, but this only works for branches in the same repository. Pull requests from a forked branch will never have permission to write to the status API.

Log messages look something like this, which is difficult to follow the real errors when the log is interleaved with expected API failures:

Notice: 15 23:08:58 [NOTICE]   Successfully linted GIT_MERGE_CONFLICT_MARKERS
2025-10-15 23:08:58 [INFO]   Failed to call GitHub Status API: curl: (22) The requested URL returned error: 403
Notice: 15 23:08:58 [NOTICE]   Successfully linted GO
2025-10-15 23:08:58 [INFO]   Failed to call GitHub Status API: curl: (22) The requested URL returned error: 403
Notice: 15 23:08:58 [NOTICE]   Successfully linted GO_MODULES
2025-10-15 23:08:58 [INFO]   Failed to call GitHub Status API: curl: (22) The requested URL returned error: 403
Error: -15 23:08:58 [ERROR]   Errors found in JSCPD