fix: add txn retry logic

[Phoenix500526]

Refs: #774 Closes: #774

Please briefly answer these questions:

• what problem are you trying to solve? (or if there's no problem, what's the motivation for this change?) FYI: #774

• what changes does this pull request make? Add a retry logic in write_batch.

• are there any non-obvious implications of these changes? (does it break compatibility with previous versions, etc) There is nothing to change breakingly, but we need to do a performance regression test for this modification.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 57.98319% with 50 lines in your changes are missing coverage. Please review.

Project coverage is 75.59%. Comparing base (e35b35a) to head (8f4f038). Report is 14 commits behind head on master.

:exclamation: Current head 8f4f038 differs from pull request most recent head ebda1ef. Consider uploading reports for the commit ebda1ef to get more accurate results

Files	Patch %	Lines
crates/xline/src/utils/args.rs	0.00%	18 Missing :warning:
crates/engine/src/rocksdb_engine/mod.rs	84.21%	3 Missing and 6 partials :warning:
crates/curp/src/server/curp_node.rs	0.00%	5 Missing :warning:
crates/xlinectl/src/command/watch.rs	0.00%	5 Missing :warning:
crates/xline/src/storage/auth_store/store.rs	20.00%	4 Missing :warning:
crates/xline/src/storage/lease_store/mod.rs	50.00%	2 Missing :warning:
crates/curp-test-utils/src/test_cmd.rs	80.00%	0 Missing and 1 partial :warning:
crates/curp/src/server/cmd_worker/mod.rs	0.00%	1 Missing :warning:
crates/xline-client/src/clients/auth.rs	75.00%	0 Missing and 1 partial :warning:
crates/xline-client/src/clients/kv.rs	75.00%	0 Missing and 1 partial :warning:
... and 3 more

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #776 +/- ## ========================================== + Coverage 75.55% 75.59% +0.04% ========================================== Files 180 182 +2 Lines 26938 27056 +118 Branches 26938 27056 +118 ========================================== + Hits 20353 20454 +101 - Misses 5366 5385 +19 + Partials 1219 1217 -2 ```

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