fix env variables for setup_release job

[ReenigneArcher]

Description

• (actually) fix for setup_release job output

Tested these scenarios for release body:

• changelog (multiline string) used as release body
• overwrote release body with random string (single line string)
• no text for release body

Screenshot

Issues Fixed or Closed

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update (changes to documentation)
• Repository update (changes to repository files)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the in code docstring/documentation-blocks for new or existing methods/components