feat: add helper function to generate unique case name

[nanjingfm]

ginkgo 生成的 junit 报告中的 case 名称包含了用例的描述，所以要定义个特殊的格式来识别唯一名称。

现在代码中定义的格式是 {case:the-real-unique-case-name}，如 {case:GetProject}

<?xml version="1.0" encoding="UTF-8"?>
  <testsuites tests="9" disabled="0" errors="0" failures="0" time="0.000668">
      <testsuite name="integrations-e2e" package="/Users/xx/code/katanomi/integrations/test/e2e" tests="9" disabled="0" skipped="0" errors="0" failures="0" time="0.000668" timestamp="2024-02-28T19:21:23">
          <testcase name="[SynchronizedBeforeSuite]" classname="integrations-e2e" status="passed" time="0"></testcase>
          <testcase name="[It] [P1][ClusterIntegrationSyncPeriod] when Manual-Private-two-ns should change status from ready to not ready [{case:GetProject}, controller, integration]" classname="integrations-e2e" status="passed" time="0"></testcase>
          <testcase name="[SynchronizedAfterSuite]" classname="integrations-e2e" status="passed" time="0"></testcase>
      </testsuite>
  </testsuites>

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