Fix clashing exercise numbers

[mao-sz]

Stale numbering after #509

Because

This PR

Issue

Closes #XXXXX

Additional Information

Pull Request Requirements

• I have thoroughly read and understand The Odin Project Contributing Guide
• The title of this PR follows the location of change: brief description of change format, e.g. 01_helloWorld: Update test cases
• The Because section summarizes the reason for this PR
• The This PR section has a bullet point list describing the changes in this PR
• If this PR addresses an open issue, it is linked in the Issue section
• If this PR includes any changes that affect the solution of an exercise, I've also updated the solution in the /solutions folder

[JoshDevHub]

Is this still relevant after #597 ?

[mao-sz]

@JoshDevHub Do you think we should hold off on 597 until we can do it together with the recursion changes in the curriculum? As a joint announcement.

If so, this one is still needed as an intermediate fix. Otherwise I can merge the restructure stuff first in both repos and make the announcement, then we can do a second announcement once the recursion stuff is done for both pathways (in which case this PR will be superseded)

[JoshDevHub]

Ah okay, in that case you can go ahead and merge this one as the recursion stuff is not going to be fully ready for a little bit. Wanted to give Nik a chance to put the PR in to the curriculum to replace the exercises and was planning to allow a few more days for that.