chore: fix broken stake program live tests

[jstarry]

Problem

• The stake program live tests rely on getting a new finalized blockhash whenever a duplicate transaction is sent, but it takes awhile for a new validator to start finalizing blocks.
• Stake tests don't use the min delegation

Summary of Changes

• Update stake program test to not use a dup transaction
• Ensure min delegation is used

Fixes #

[codecov]

Codecov Report

Merging #25107 (304fcb1) into master (69a0ff9) will decrease coverage by 6.8%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master   #25107       +/-   ##
===========================================
- Coverage    82.0%    75.1%     -6.9%     
===========================================
  Files         598       38      -560     
  Lines      165882     2244   -163638     
  Branches        0      323      +323     
===========================================
- Hits       136125     1687   -134438     
+ Misses      29757      444    -29313     
- Partials        0      113      +113     

[mergify]

automerge label removed due to a CI failure