v1.16: Make active stake consistent in split (backport of #33295)

[mergify]

This is an automatic backport of pull request #33295 done by Mergify.
Cherry-pick of bca41ed has failed:

On branch mergify/bp/v1.16/pr-33295
Your branch is up to date with 'origin/v1.16'.

You are currently cherry-picking commit bca41edf20.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   .github/workflows/downstream-project-spl.yml
	modified:   cli/src/cli.rs
	modified:   cli/src/stake.rs
	modified:   tokens/src/arg_parser.rs
	modified:   tokens/src/args.rs
	modified:   tokens/src/commands.rs
	modified:   tokens/src/lib.rs
	modified:   tokens/src/main.rs
	new file:   tokens/src/stake.rs

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   cli/tests/stake.rs
	both modified:   programs/stake/src/stake_instruction.rs
	both modified:   programs/stake/src/stake_state.rs
	both modified:   runtime/tests/stake.rs
	both modified:   sdk/src/feature_set.rs

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[codecov]

Codecov Report

Merging #33319 (9eb709c) into v1.16 (d87681e) will increase coverage by 0.0%.
Report is 1 commits behind head on v1.16.
The diff coverage is 96.4%.

@@           Coverage Diff            @@
##            v1.16   #33319    +/-   ##
========================================
  Coverage    81.9%    82.0%            
========================================
  Files         762      763     +1     
  Lines      207841   208251   +410     
========================================
+ Hits       170368   170770   +402     
- Misses      37473    37481     +8     

[t-nelson]

i didn't re-review the tests, but logic lgtm. seems like a mostly clean cherry-pick?

[CriesofCarrots]

seems like a mostly clean cherry-pick?

Yep, the conflicts were all StakeStateV2 => StakeState, plus the feature-set list.