version: change version to 1.2.0-SNAPSHOT

[slievrly]

Signed-off-by: slievrly slievrly@163.com

Ⅰ. Describe what this PR did

version: change version to 1.2.0-SNAPSHOT

Ⅱ. Does this pull request fix one issue?

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

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov-io]

Codecov Report

Merging #2276 into develop will decrease coverage by <.01%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop    #2276      +/-   ##
=============================================
- Coverage      50.12%   50.12%   -0.01%     
- Complexity      2662     2664       +2     
=============================================
  Files            518      518              
  Lines          17031    17031              
  Branches        2062     2062              
=============================================
- Hits            8537     8536       -1     
- Misses          7688     7690       +2     
+ Partials         806      805       -1

Impacted Files	Coverage Δ	Complexity Δ
.../src/main/java/io/seata/core/protocol/Version.java	0% <ø> (ø)	0 <0> (ø)	⬇️
...obuf/convertor/BranchRegisterRequestConvertor.java	100% <0%> (ø)	3% <0%> (ø)	⬇️
...otobuf/convertor/BranchReportRequestConvertor.java	100% <0%> (ø)	3% <0%> (ø)	⬇️
...obuf/convertor/BranchRollbackRequestConvertor.java	100% <0%> (ø)	3% <0%> (ø)	⬇️
...otobuf/convertor/GlobalBeginResponseConvertor.java	100% <0%> (ø)	3% <0%> (ø)	⬇️
...otobuf/convertor/GlobalStatusRequestConvertor.java	100% <0%> (ø)	3% <0%> (ø)	⬇️
...otobuf/convertor/GlobalCommitRequestConvertor.java	100% <0%> (ø)	3% <0%> (ø)	⬇️
...obuf/convertor/GlobalRollbackRequestConvertor.java	100% <0%> (ø)	3% <0%> (ø)	⬇️
...protobuf/convertor/RegisterTMRequestConvertor.java	100% <0%> (ø)	3% <0%> (ø)	⬇️
...protobuf/convertor/RegisterRMRequestConvertor.java	95.23% <0%> (ø)	3% <0%> (ø)	⬇️
... and 21 more

[zjinlei]

LGTM

[l81893521]

LGTM