migrate: Migrate CI provider from Travis CI to Github Actions.

[ujjboy]

Ⅰ. Describe what this PR did

Migrate CI provider from Travis CI to Github Actions.

ref: https://docs.github.com/cn/free-pro-team@latest/actions/learn-github-actions/migrating-from-travis-ci-to-github-actions

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

[caohdgege]

ci的报错修复了，把develop合并到你的分支再推一下？

[ujjboy]

这两个用例还是错的
io.seata.integration.http.HttpTest#testPostProviderXID
io.seata.core.context.RootContextTest#testBind_And_Unbind

[funky-eyes]

这两个用例还是错的
io.seata.integration.http.HttpTest#testPostProviderXID
io.seata.core.context.RootContextTest#testBind_And_Unbind

#3359
这个pr修掉了#testBind_And_Unbind不通过的bug，testPostProviderXID本地跑没有发现有什么异常

[codecov-io]

Codecov Report

Merging #3343 (7fa2673) into develop (23a407e) will decrease coverage by 0.10%.
The diff coverage is 55.88%.

@@              Coverage Diff              @@
##             develop    #3343      +/-   ##
=============================================
- Coverage      51.11%   51.00%   -0.11%     
+ Complexity      3297     3293       -4     
=============================================
  Files            614      614              
  Lines          20125    20133       +8     
  Branches        2514     2519       +5     
=============================================
- Hits           10287    10269      -18     
- Misses          8806     8835      +29     
+ Partials        1032     1029       -3     

Impacted Files	Coverage Δ	Complexity Δ
...c/main/java/io/seata/core/context/RootContext.java	47.16% <0.00%> (-3.78%)	18.00 <0.00> (-1.00)
...io/seata/core/rpc/netty/RmNettyRemotingClient.java	39.13% <ø> (ø)	10.00 <0.00> (ø)
...scovery/loadbalance/ConsistentHashLoadBalance.java	89.28% <ø> (ø)	3.00 <0.00> (ø)
.../discovery/loadbalance/LeastActiveLoadBalance.java	100.00% <ø> (ø)	7.00 <0.00> (ø)
...eata/discovery/loadbalance/LoadBalanceFactory.java	50.00% <ø> (ø)	1.00 <0.00> (ø)
...seata/discovery/loadbalance/RandomLoadBalance.java	100.00% <ø> (ø)	2.00 <0.00> (ø)
...a/discovery/loadbalance/RoundRobinLoadBalance.java	66.66% <ø> (ø)	3.00 <0.00> (ø)
...very/registry/zk/ZookeeperRegisterServiceImpl.java	60.46% <0.00%> (-0.48%)	26.00 <0.00> (ø)
...ta/rm/datasource/exec/AbstractDMLBaseExecutor.java	60.37% <ø> (-0.64%)	11.00 <0.00> (-2.00)
.../seata/rm/datasource/exec/MultiUpdateExecutor.java	76.00% <ø> (-0.32%)	12.00 <0.00> (ø)
... and 17 more

[slievrly]

great job

[funky-eyes]

LGTM