feat: fix xa local bug

[georgehao]

What this PR does:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[codecov-commenter]

Codecov Report

Merging #566 (2e5df7b) into master (8e89c54) will increase coverage by 0.32%.
The diff coverage is 52.50%.

❗ Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

@@            Coverage Diff             @@
##           master     #566      +/-   ##
==========================================
+ Coverage   36.99%   37.31%   +0.32%     
==========================================
  Files         160      160              
  Lines       11154    11206      +52     
==========================================
+ Hits         4126     4182      +56     
+ Misses       6681     6667      -14     
- Partials      347      357      +10     

Impacted Files	Coverage Δ
pkg/client/client.go	0.00% <ø> (ø)
pkg/datasource/sql/db.go	49.24% <0.00%> (-2.80%)	⬇️
pkg/datasource/sql/driver.go	69.71% <ø> (ø)
...kg/datasource/sql/exec/at/multi_delete_executor.go	29.68% <ø> (ø)
pkg/datasource/sql/xa_resource_manager.go	4.80% <0.00%> (+0.07%)	⬆️
pkg/datasource/sql/xa/mysql_xa_connection.go	57.14% <51.51%> (-1.74%)	⬇️
pkg/datasource/sql/conn_xa.go	45.55% <72.41%> (+11.42%)	⬆️
pkg/datasource/sql/conn.go	19.73% <100.00%> (+0.53%)	⬆️
...ing/processor/client/rm_branch_commit_processor.go	36.36% <100.00%> (ø)
pkg/tm/transaction_executor.go	97.50% <100.00%> (+0.02%)	⬆️

... and 1 file with indirect coverage changes