Fix(log flags): handle log streams correctly

[lxuan94-pp]

What type of PR is this?

/kind bug

Optionally add one or more of the following kinds if applicable:
/kind regression

What this PR does / why we need it:

After upgrading to Autoscaler v1.30.x, the log file no longer exists and is not created. This PR fixes the issue without modifying component-base or klog in vendor

Which issue(s) this PR fixes:

Fixes #7842

Special notes for your reviewer:

Persist the behavior from klog:

commandLine.StringVar(&logging.logFile, "log_file", "", "If non-empty, use this log file (no effect when -logtostderr=true)")
commandLine.BoolVar(&logging.toStderr, "logtostderr", true, "log to standard error instead of files")
commandLine.BoolVar(&logging.alsoToStderr, "alsologtostderr", false, "log to standard error as well as files (no effect when -logtostderr=true)")

Does this PR introduce a user-facing change?

None

For more information on release notes see: https://git.k8s.io/community/contributors/guide/release-notes.md
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Fixed an issue where the --log-file option stopped working. Logging now correctly writes to the specified file in addition to standard error.

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

Tested in OCI cluster

[k8s-ci-robot]

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: lxuan94-pp
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[jackfrancis]

missing copyright header text (see examples in other files, make sure to set the date to 2025)

[lxuan94-pp]

Thanks, added and the date is set to 2025.

[jackfrancis]

please remove this newline change, thank you!

[lxuan94-pp]

I think it was changed by go mod tidy I ran, which caused different line endings. I have reverted it to the master version.