cloud versioning: push/fetch behavior cleanup

[pmrowla]

• ❗ I have followed the Contributing to DVC checklist.

• 📖 If this PR requires documentation updates, I have created a separate PR (or issue, at least) in dvc.org and linked it here.

Thank you for the contribution - we'll try to review it as soon as possible. 🙏

Will fix #8664
Will fix #8665

[codecov]

Codecov Report

Base: 93.97% // Head: 93.93% // Decreases project coverage by -0.03% ⚠️

Coverage data is based on head (1005d1d) compared to base (7628fe9).
Patch coverage: 17.39% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8667      +/-   ##
==========================================
- Coverage   93.97%   93.93%   -0.04%     
==========================================
  Files         435      435              
  Lines       33525    33539      +14     
  Branches     4730     4733       +3     
==========================================
+ Hits        31505    31506       +1     
- Misses       1588     1601      +13     
  Partials      432      432              

Impacted Files	Coverage Δ
dvc/repo/push.py	58.82% <0.00%> (ø)
dvc/repo/worktree.py	9.77% <15.00%> (-0.31%)	⬇️
dvc/repo/fetch.py	77.96% <50.00%> (ø)

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