optimize: fix some typos in project

[psxjoy]

• I have registered the PR changes.

Ⅰ. Describe what this PR did

When I downloaded the src code, I found some typos in the project.
I think it should be a great opportunity to join seata's contributing journey.

Ⅱ. Does this pull request fix one issue?

Not applicable

Ⅲ. Why don't you add test cases (unit test/integration test)?

Only including typos fix.

Ⅳ. Describe how to verify it

Not applicable

Ⅴ. Special notes for reviews

[codecov]

Codecov Report

Attention: Patch coverage is 62.50000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 52.53%. Comparing base (87c1696) to head (161d33e).
Report is 1 commits behind head on 2.x.

Files with missing lines	Patch %	Lines
...che/seata/core/rpc/netty/NettyClientBootstrap.java	0.00%	0 Missing and 2 partials ⚠️
...org/apache/seata/server/session/GlobalSession.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##                2.x    #6911   +/-   ##
=========================================
  Coverage     52.53%   52.53%           
  Complexity     6544     6544           
=========================================
  Files          1122     1122           
  Lines         39857    39857           
  Branches       4670     4670           
=========================================
+ Hits          20938    20940    +2     
+ Misses        16924    16923    -1     
+ Partials       1995     1994    -1     

Files with missing lines	Coverage Δ
.../org/apache/seata/config/ConfigurationFactory.java	39.47% <100.00%> (ø)
...seata/core/exception/TransactionExceptionCode.java	100.00% <100.00%> (ø)
.../java/org/apache/seata/core/protocol/Protocol.java	100.00% <100.00%> (ø)
...tasource/undo/oracle/OracleUndoInsertExecutor.java	55.55% <ø> (ø)
...octrl/eventing/impl/ProcessCtrlEventPublisher.java	100.00% <ø> (ø)
.../statelang/parser/impl/ServiceTaskStateParser.java	83.33% <ø> (ø)
.../apache/seata/server/storage/SessionConverter.java	89.51% <100.00%> (ø)
...org/apache/seata/server/session/GlobalSession.java	70.84% <0.00%> (ø)
...che/seata/core/rpc/netty/NettyClientBootstrap.java	54.65% <0.00%> (ø)

... and 2 files with indirect coverage changes

[slievrly]

LGTM

[xingfudeshi]

LGTM

[xingfudeshi]

@psxjoy Pleasse add this PR to change log here https://github.com/apache/incubator-seata/tree/2.x/changes

[psxjoy]

@xingfudeshi Thanks for your notice.
I have already added this PR's info into change log.

[funky-eyes]

LGTM