Record root span name for each child span

[huaiyan]

Description

We will create placeholder for root span when the process is running.
It's very necessary to show root span name in the running placeholder.
So, we add root span name to the attributes of all child spans and use it to create placeholder

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• The pull request does not introduce [breaking changes].
• CHANGELOG is updated for new features, bug fixes or other significant changes.
• I have read the contribution guidelines.
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General Guidelines and Best Practices

• Title of the pull request is clear and informative.
• There are a small number of commits, each of which have an informative message. This means that previously merged commits do not appear in the history of the PR. For more information on cleaning up the commits in your PR, see this page.

Testing Guidelines

• Pull request includes test coverage for the included changes.

[github-actions]

promptflow SDK CLI Azure E2E Test Result dev/robbenwang_root_span_name

  4 files    4 suites   4m 6s ⏱️
238 tests 203 ✅  35 💤 0 ❌
952 runs  812 ✅ 140 💤 0 ❌

Results for commit d0ff2dd.

♻️ This comment has been updated with latest results.

[github-actions]

SDK CLI Global Config Test Result dev/robbenwang_root_span_name

6 tests   6 ✅  1m 19s ⏱️
1 suites  0 💤
1 files    0 ❌

Results for commit d0ff2dd.

♻️ This comment has been updated with latest results.

[github-actions]

Executor E2E Test Result dev/robbenwang_root_span_name

241 tests   236 ✅  5m 14s ⏱️
  1 suites    5 💤
  1 files      0 ❌

Results for commit d0ff2dd.

♻️ This comment has been updated with latest results.

[github-actions]

Executor Unit Test Result dev/robbenwang_root_span_name

792 tests   792 ✅  3m 43s ⏱️
  1 suites    0 💤
  1 files      0 ❌

Results for commit d0ff2dd.

♻️ This comment has been updated with latest results.

[github-actions]

SDK CLI Test Result dev/robbenwang_root_span_name

    4 files      4 suites   58m 3s ⏱️
  663 tests   650 ✅ 13 💤 0 ❌
2 652 runs  2 600 ✅ 52 💤 0 ❌

Results for commit d0ff2dd.

♻️ This comment has been updated with latest results.

[github-actions]

promptflow-tracing test result

 12 files   12 suites   7m 54s ⏱️
 19 tests  19 ✅ 0 💤 0 ❌
228 runs  228 ✅ 0 💤 0 ❌

Results for commit d0ff2dd.

♻️ This comment has been updated with latest results.

[github-actions]

promptflow-core test result

0 tests   0 ✅  0s ⏱️
0 suites  0 💤
0 files    0 ❌

Results for commit d0ff2dd.

♻️ This comment has been updated with latest results.

[github-actions]

Hi, thank you for your interest in helping to improve the prompt flow experience and for your contribution. We've noticed that there hasn't been recent engagement on this pull request. If this is still an active work stream, please let us know by pushing some changes or leaving a comment.

[github-actions]

Hi, thank you for your contribution. Since there has not been recent engagement, we are going to close this out. Feel free to reopen if you'd like to continue working on these changes. Please be sure to remove the no-recent-activity label; otherwise, this is likely to be closed again with the next cleanup pass.