bugfix: fix misspelling in statelang examples

[v0y4g3r]

Ⅰ. Describe what this PR did

Fix spelling issues in saga mode statelang examples. The lowercase 'output' in states will not put any return value into state machine context.

Ⅱ. Does this pull request fix one issue?

NO

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

N/A

Ⅳ. Describe how to verify it

N/A

Ⅴ. Special notes for reviews

N/A

[codecov-commenter]

Codecov Report

Merging #2890 into develop will increase coverage by 0.12%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop    #2890      +/-   ##
=============================================
+ Coverage      49.96%   50.09%   +0.12%     
- Complexity      3013     3015       +2     
=============================================
  Files            597      597              
  Lines          19267    19291      +24     
  Branches        2304     2347      +43     
=============================================
+ Hits            9627     9664      +37     
- Misses          8656     8667      +11     
+ Partials         984      960      -24     

Impacted Files	Coverage Δ	Complexity Δ
...o/seata/server/storage/redis/lock/RedisLocker.java	37.96% <0.00%> (-0.72%)	10.00% <0.00%> (ø%)
...rage/redis/store/RedisTransactionStoreManager.java	36.05% <0.00%> (-0.53%)	20.00% <0.00%> (ø%)
...java/io/seata/spring/tcc/TccActionInterceptor.java	11.36% <0.00%> (-0.27%)	2.00% <0.00%> (ø%)
...n/java/io/seata/rm/datasource/ConnectionProxy.java	28.00% <0.00%> (-0.23%)	13.00% <0.00%> (ø%)
...ta/core/rpc/netty/AbstractNettyRemotingClient.java	19.04% <0.00%> (-0.21%)	8.00% <0.00%> (ø%)
...in/java/io/seata/server/session/GlobalSession.java	84.16% <0.00%> (-0.10%)	72.00% <0.00%> (+1.00%)	⬇️
...ta/core/rpc/netty/AbstractNettyRemotingServer.java	0.00% <0.00%> (ø)	0.00% <0.00%> (ø%)
...in/java/io/seata/server/session/BranchSession.java	78.10% <0.00%> (+0.07%)	44.00% <0.00%> (ø%)
...a/server/storage/db/store/LogStoreDataBaseDAO.java	71.18% <0.00%> (+0.09%)	31.00% <0.00%> (ø%)
...in/java/io/seata/tm/api/TransactionalTemplate.java	64.34% <0.00%> (+0.31%)	25.00% <0.00%> (ø%)
... and 23 more

[funky-eyes]

LGTM

[wangliang181230]

LGTM

[l81893521]

LGTM