add merge_multiple option

[timostroehlein]

Add merge_multiple option to download all artifacts into the same folder. Essentially does the same as the merge-multiple option from the official download action
https://github.com/actions/download-artifact?tab=readme-ov-file#download-multiple-filtered-artifacts-to-the-same-directory

[dawidd6]

Nice. Thanks!

[timostroehlein]

@dawidd6 Could you release a new version with this change, I would highly appreciate it :)

[dawidd6]

Right away sir. Released in v9.

[mstorsjo]

This seems to use the spelling merge_multiple, whereas https://github.com/actions/download-artifact uses the spelling merge-multiple. Is this divergence intentional?

Also, this option isn't documented in the main option listing at https://github.com/dawidd6/action-download-artifact?tab=readme-ov-file#usage.

[timostroehlein]

This seems to use the spelling merge_multiple, whereas https://github.com/actions/download-artifact uses the spelling merge-multiple. Is this divergence intentional?

Also, this option isn't documented in the main option listing at https://github.com/dawidd6/action-download-artifact?tab=readme-ov-file#usage.

The spelling is intentional since all options in this action are named using snake case and this really shouldn't be mixed up. I've created a PR to update the readme, thanks for pointing that out

[mstorsjo]

This seems to use the spelling merge_multiple, whereas https://github.com/actions/download-artifact uses the spelling merge-multiple. Is this divergence intentional?
Also, this option isn't documented in the main option listing at https://github.com/dawidd6/action-download-artifact?tab=readme-ov-file#usage.

The spelling is intentional since all options in this action are named using snake case and this really shouldn't be mixed up. I've created a PR to update the readme, thanks for pointing that out

Fair enough, that's a reasonable argument. Thanks for adding the docs!