Links to specific step logs and duplicate step names

**Describe the bug**
Links to specific step logs implemented in #170 finds step number by step name, but step name may duplicate. Looks like the step number should be retrieved from UI (globe icon of step with which index is clicked?).
https://github.com/github/vscode-github-actions/blob/bed6eac0cb7c76c1487f50402111e30d67c1354b/src/commands/openWorkflowStepLogs.ts#L13

**To Reproduce**
Steps to reproduce the behavior:
1. Clone https://github.com/muzimuzhi/hello-github-actions and open it with vscode
2. Find the 5th run of workflow "Test GitHub Actions itself"
3. Expand steps of its only job "Hello GitHub Actions", click the globe icon next to the second step named "Run dummy commands", also the 4th step
4. https://github.com/muzimuzhi/hello-github-actions/actions/runs/4902036880/jobs/8753647810#step:3:1 opened


**Expected behavior**
https://github.com/muzimuzhi/hello-github-actions/actions/runs/4902036880/jobs/8753647810#step:4:1 opened. Note it should be `#step:4:1`, not `#step:3:1`.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Extension Version**
`v0.25.7`

リンク先の src/commands/openWorkflowStepLogs.ts から始め、hello-github-actions リポジトリと 5 回目の workflow 実行を使って、重複名のケースを再現します。クリックした step がどのように識別されるかを追跡し、次に 2 番目の「Run dummy commands」リンクをクリックすると #step:3:1 ではなく #step:4:1 が開くことを確認します。

索引モデルが issue の本文から書いたものです。