chore: bump grovedb to 2d95c567 (#850 merged: limited branches graft below a shared key)

[QuantumExplorer]

Issue being fixed or feature implemented

Composite document queries (next PR in this stack: a page plus sub-queries derived from its results, joins / lookups / counts, proven as ONE merged grovedb proof) need PathQuery::merge to accept limited branches that share a key with another branch and diverge right below it. Today's merge (v1) grafts a limited input exclusively at the first key past the common path and refuses any collision there, so a limited page on post cannot merge with a by-id fetch on post, and a limited page cannot merge with a limited lookup under the same contract once a cross-contract sub-query lifts the common path to the root.

What was done?

Pins grovedb at 2d95c567, the develop merge commit of dashpay/grovedb#850, which makes the merge descend into an owned key and graft where the branches actually diverge, refusing only when the bodies would meet (ownership follows execution order: the root must select the key exactly and the first conditional matching it must be that exact key). The pin also carries #849 (flat-subtree drop) from grovedb develop. All six Cargo.toml pins move together; no platform code change.

How Has This Been Tested?

cargo check -p drive --features server against the merge commit; the composite-query PRs stacked on this one run their end-to-end merge/prove/verify suites (rs-drive and drive-abci) against it.

Breaking Changes

None.

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have added "!" to the title and described breaking changes in the corresponding section if my code contains any
• I have made corresponding changes to the documentation if needed

🤖 Generated with Claude Code

[coderabbitai]

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/grovedb-pin-merge-graft

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[thepastaclaw]

ℹ️ Review skipped (commit c6926e5)
Last checked: 2026-09-05 04:03 UTC

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.39%. Comparing base (61d96d2) to head (c6926e5).
⚠️ Report is 5 commits behind head on v4.2-dev.

Additional details and impacted files

@@             Coverage Diff              @@
##           v4.2-dev    #4597      +/-   ##
============================================
- Coverage     86.73%   86.39%   -0.35%     
============================================
  Files          2756     2786      +30     
  Lines        360939   364716    +3777     
============================================
+ Hits         313072   315103    +2031     
- Misses        47867    49613    +1746     

Components	Coverage Δ
dpp	87.19% <ø> (ø)
drive	84.63% <ø> (-0.46%)	⬇️
drive-abci	89.82% <ø> (+<0.01%)	⬆️
sdk	∅ <ø> (∅)
dapi-client	∅ <ø> (∅)
platform-version	∅ <ø> (∅)
platform-value	92.92% <ø> (ø)
platform-wallet	∅ <ø> (∅)
drive-proof-verifier	49.22% <ø> (ø)

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