make remote application effect on consumer side too

[beiwei30]

What is the purpose of the change

make sure RpcContext.getContext().getRemoteApplication() returns provider's app name on client side. It may useful when a custom filter is implemented.

a follow up for pull request #4722

Brief changelog

XXXXX

Verifying this change

XXXXX

Follow this checklist to help us incorporate your contribution quickly and easily:

• Make sure there is a GITHUB_issue field for the change (usually before you start working on it). Trivial changes like typos do not require a GITHUB issue. Your pull request should address just this issue, without pulling in other changes - one PR resolves one issue.
• Format the pull request title like [Dubbo-XXX] Fix UnknownException when host config not exist #XXX. Each commit in the pull request should have a meaningful subject line and body.
• Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
• Write necessary unit-test to verify your logic correction, more mock a little better when cross module dependency exist. If the new feature or significant change is committed, please remember to add sample in dubbo samples project.
• Run mvn clean install -DskipTests=false & mvn clean test-compile failsafe:integration-test to make sure unit-test and integration-test pass.
• If this contribution is large, please follow the Software Donation Guide.

[codecov-io]

Codecov Report

Merging #5029 into master will increase coverage by 0.06%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master    #5029      +/-   ##
============================================
+ Coverage     63.88%   63.95%   +0.06%     
- Complexity      450      453       +3     
============================================
  Files           769      769              
  Lines         33147    33182      +35     
  Branches       5206     5232      +26     
============================================
+ Hits          21177    21222      +45     
+ Misses         9549     9544       -5     
+ Partials       2421     2416       -5

Impacted Files	Coverage Δ	Complexity Δ
...apache/dubbo/rpc/filter/ConsumerContextFilter.java	100% <100%> (ø)	0 <0> (ø)	⬇️
...che/dubbo/remoting/transport/mina/MinaChannel.java	43.42% <0%> (-10.53%)	16% <0%> (-1%)
...dubbo/common/status/support/LoadStatusChecker.java	46.15% <0%> (-3.85%)	0% <0%> (ø)
...ting/exchange/support/header/HeartbeatHandler.java	83.72% <0%> (-2%)	0% <0%> (ø)
.../main/java/org/apache/dubbo/qos/textui/TTable.java	83.79% <0%> (-0.87%)	0% <0%> (ø)
...org/apache/dubbo/registry/redis/RedisRegistry.java	48.15% <0%> (-0.26%)	31% <0%> (ø)
...n/java/org/apache/dubbo/common/utils/UrlUtils.java	78.04% <0%> (-0.2%)	0% <0%> (ø)
...mon/src/main/java/org/apache/dubbo/common/URL.java	50.22% <0%> (-0.08%)	0% <0%> (ø)
...g/apache/dubbo/registry/consul/ConsulRegistry.java	61.87% <0%> (ø)	29% <0%> (ø)	⬇️
.../apache/dubbo/remoting/transport/AbstractPeer.java	63.04% <0%> (ø)	0% <0%> (ø)	⬇️
... and 23 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c536eec...a7e1dbb. Read the comment docs.