Combine common txn arguments into TxnContext

[serathius]

/cc @ahrtr @fuweid @siyuanfoundation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.79%. Comparing base (e271b78) to head (23baf83).
Report is 227 commits behind head on main.

Additional details and impacted files

Files with missing lines	Coverage Δ
server/etcdserver/apply/apply.go	77.72% <100.00%> (+0.62%)	⬆️
server/etcdserver/txn/txn.go	93.73% <100.00%> (ø)
server/etcdserver/v3_server.go	75.16% <100.00%> (+1.43%)	⬆️

... and 24 files with indirect coverage changes

@@            Coverage Diff             @@
##             main   #19809      +/-   ##
==========================================
- Coverage   68.86%   68.79%   -0.08%     
==========================================
  Files         421      421              
  Lines       35867    35884      +17     
==========================================
- Hits        24700    24686      -14     
- Misses       9745     9772      +27     
- Partials     1422     1426       +4     

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fuweid, serathius

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[k8s-ci-robot]

PR needs rebase.

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[siyuanfoundation]

nit: how about renaming txn to txnContext? because txn is usually short for transaction, which it is not.

[serathius]

SG

[k8s-ci-robot]

@serathius: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci-etcd-robustness-release36-amd64	23baf83	link	true	/test ci-etcd-robustness-release36-amd64
ci-etcd-robustness-release35-amd64	23baf83	link	true	/test ci-etcd-robustness-release35-amd64

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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