Fix multimedia_utils.

[codingrabbitt1]

Description

Fix some bugs caused by this pr #2287

1. Fix MultimediaProcessor._process_multimedia_dict_recursively.
2. Because this pr 2287 fully refactored multimedia_utils, some changes made to the file by others during development were ignored. Specific changes:

• [Internal][Executor] Add batch run related apis for executor server #2122
• Remove *, for get_file_reference_encoder method.
• Add parameter: use_absolute_path for persist_multimedia_data method.

All Promptflow Contribution checklist:

• 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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Testing Guidelines

• Pull request includes test coverage for the included changes.

[github-actions]

promptflow-core test result

 12 files   12 suites   2m 54s ⏱️
 11 tests  11 ✅ 0 💤 0 ❌
132 runs  132 ✅ 0 💤 0 ❌

Results for commit 2039569.

[github-actions]

SDK CLI Global Config Test Result wangbin/contract_version1

3 tests   3 ✅  45s ⏱️
1 suites  0 💤
1 files    0 ❌

Results for commit 2039569.

[github-actions]

promptflow SDK CLI Azure E2E Test Result wangbin/contract_version1

  4 files    4 suites   4m 1s ⏱️
202 tests 182 ✅ 20 💤 0 ❌
808 runs  728 ✅ 80 💤 0 ❌

Results for commit 2039569.

[github-actions]

Executor Unit Test Result wangbin/contract_version1

754 tests   754 ✅  3m 44s ⏱️
  1 suites    0 💤
  1 files      0 ❌

Results for commit 2039569.

[github-actions]

Executor E2E Test Result wangbin/contract_version1

217 tests   215 ✅  6m 5s ⏱️
  1 suites    2 💤
  1 files      0 ❌

Results for commit 2039569.

[github-actions]

SDK CLI Test Result wangbin/contract_version1

   12 files     12 suites   50m 59s ⏱️
  521 tests   502 ✅ 19 💤 0 ❌
2 084 runs  2 008 ✅ 76 💤 0 ❌

Results for commit 2039569.