Update version to v1.17.19

[willhickey]

Nothing in this commit except the version bump:

$ glol -1
79a850a44f 2024-01-27 00:54:40 -0600  (HEAD -> version_bump_v1.17.19, origin/version_bump_v1.17.19)  [email protected] Update version to v1.17.19
$ git diff v1.17..HEAD | grep -vE "^ |^@@ |^--- |^\+\+\+ |^index |^diff |^-( \")?solana.*1.17.18|^\+( \")?solana.*1.17.19|^-version|^\+version"
$

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (dd28fd5) 81.7% compared to head (79a850a) 81.7%.

Additional details and impacted files

@@           Coverage Diff           @@
##            v1.17   #34986   +/-   ##
=======================================
  Coverage    81.7%    81.7%           
=======================================
  Files         806      806           
  Lines      218966   218966           
=======================================
+ Hits       178923   178940   +17     
+ Misses      40043    40026   -17