Update version to v1.17.9

[willhickey]

Nothing in this commit except the version bump:

$ glol -1
d60c61b690 2023-12-08 21:33:11 -0600  (HEAD -> version_bump_v1.17.9, origin/version_bump_v1.17.9)  will.hickey@solana.com Update version to v1.17.9
$ git diff v1.17..HEAD | grep -vE "^ |^@@ |^--- |^\+\+\+ |^index |^diff |^-( \")?solana.*1.17.8|^\+( \")?solana.*1.17.9|^-version|^\+version"
$

[codecov]

Codecov Report

Merging #34378 (d60c61b) into v1.17 (01306a6) will decrease coverage by 0.1%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff            @@
##            v1.17   #34378     +/-   ##
=========================================
- Coverage    81.8%    81.8%   -0.1%     
=========================================
  Files         803      803             
  Lines      218173   218173             
=========================================
- Hits       178538   178512     -26     
- Misses      39635    39661     +26