Bump versions to LDK 116-alpha1 and invoice 24.0-alpha1

[TheBlueMatt]

No description provided.

[jkczyz]

LGTM with the caveat that I didn't realize version numbers like this were allowed.

[TheBlueMatt]

We did 0.0.114-beta, so I assume -alpha1 is okay :)

[codecov-commenter]

Codecov Report

Patch coverage has no change and project coverage change: +0.02 🎉

Comparison is base (3973865) 90.30% compared to head (23e9fc7) 90.32%.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2373      +/-   ##
==========================================
+ Coverage   90.30%   90.32%   +0.02%     
==========================================
  Files         106      106              
  Lines       54900    54900              
  Branches    54900    54900              
==========================================
+ Hits        49576    49589      +13     
+ Misses       5324     5311      -13     

see 5 files with indirect coverage changes

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