BUG: Body not included when generateRleaseNotes is true, since the latest update

[omer2500]

Body parameter not working/not included when creating GitHub release

Describe the bug
Usually we could set generateReleaseNotes and body parameter together to create the release body

since the latest update it seems like if generateReleaseNotes set to true, it overwrites the body completely

To Reproduce
Steps to reproduce the behavior:

1. Set up a GitHub workflow using this release action
2. Provide a body input parameter with content (e.g., body: "My release notes")
3. Run the workflow to create a release
4. Observe that the release body is empty or not as expected

Expected behavior
body + release notes should be in body of the release

Actual behavior
The release is created but the body content is missing, empty, or not what was provided in the body parameter.

Configuration
Please share your workflow configuration:

- name: Create Release
  uses: ncipollo/release-action@v1
  with:
    tag: v1.0.0
    generateReleaseNotes: true
    body: "My release notes content"
    # other parameters...

[ncipollo]

@omer2500 Would you expect the body before the generated release notes or after?

[omer2500]

@ncipollo before

for example:

my custom body 

## What's Changed
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## New Contributors
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