Minor follow-up on Group-level Release API

Description

• Add a test case Guest users can not get commit information through Group API (Relatively important)
• !77783 (comment 905621386)
• !77783 (comment 905621391)

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The following discussion from !77783 (merged) should be addressed:

• @shinya.maeda started a discussion:

  Should we drop this include since we don't need uploaded_image_temp_path in Release API context?