Fix forge install v1.20, 1.20.1 and 1.20.2

Silversthornrequested to merge
bugfix/fix-forge-install into dev

What does this MR do and why?

___Describe in detail what your merge request does and why.___

Fixing the bug that was blocking installation of Forge Servers v1.20, 1.20.1 and 1.20.2

MR acceptance checklist

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  • Have you checked this doesn't interfere/conflict/duplicate someone elses work?
  • Have you fully tested your changes?
  • Have you resolved any lint issues?
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