refactor(security-center): Rename securitycenter_list_findings_at_time region tag according new securitycenter_list_findings_within_time_range

[Kef131]

Description

Fixes #
b/517939862

Updated the region tag from securitycenter_list_findings_at_time to securitycenter_list_findings_within_time_range. This is a requirement after migration of Java region tag from GoogleApis to Java-docs-samples, to be able to have ownership over the file and be able to address a decommission on Java.

Checklist

• I have followed Contributing Guidelines from CONTRIBUTING.MD
• Tests pass: go test -v ./.. (see Testing)
• Code formatted: gofmt (see Formatting)
• Vetting pass: go vet (see Formatting)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[snippet-bot]

Here is the summary of changes.

You are about to add 1 region tag.

• securitycenter/findings/list_findings_at_time.go:17, tag securitycenter_list_findings_within_time_range

You are about to delete 1 region tag.

• securitycenter/findings/list_findings_at_time.go:17, tag securitycenter_list_findings_at_time

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[gemini-code-assist]

Code Review

This pull request updates the snippet tags in securitycenter/findings/list_findings_at_time.go from securitycenter_list_findings_at_time to securitycenter_list_findings_within_time_range. There are no review comments, and I have no feedback to provide.