[ISSUE #6968] fix grpc acl bug

[lyx2000]

Which Issue(s) This PR Fixes

Fixes #6968

Brief Description

As issue mentioned.

How Did You Test This Change?

The failure examples mentioned in the issue have been successfully accessed, then I will add enough unit tests like remoting as soon as possible.

[codecov-commenter]

Codecov Report

Merging #6969 (89f13fc) into develop (4f840af) will decrease coverage by 0.03%.
The diff coverage is 0.00%.

@@              Coverage Diff              @@
##             develop    #6969      +/-   ##
=============================================
- Coverage      42.65%   42.62%   -0.03%     
- Complexity      9234     9235       +1     
=============================================
  Files           1136     1136              
  Lines          80635    80644       +9     
  Branches       10538    10539       +1     
=============================================
- Hits           34393    34377      -16     
- Misses         41938    41976      +38     
+ Partials        4304     4291      -13     

Impacted Files	Coverage Δ
...apache/rocketmq/acl/plain/PlainAccessResource.java	53.18% <0.00%> (+0.64%)	⬆️
...n/java/org/apache/rocketmq/proxy/ProxyStartup.java	42.62% <0.00%> (-2.21%)	⬇️
.../apache/rocketmq/proxy/grpc/GrpcServerBuilder.java	0.00% <ø> (ø)
...ocketmq/proxy/remoting/RemotingProtocolServer.java	0.00% <0.00%> (ø)

... and 39 files with indirect coverage changes

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[drpmma]

LGTM, but maybe adding some unit tests would be better.

[lyx2000]

LGTM, but maybe adding some unit tests would be better.

ok I will add some necessary to prove this

[yuz10]

@lyx2000 Some check not pass, can you rerun the tests?

[lyx2000]

@lyx2000 Some check not pass, can you rerun the tests?

Ok, please wait for me for a few days, I will add some unit tests that can reflect the problem. 💪

[mxsm]

LGTM

[lyx2000]

When writing the unit tests, I found that there wasn't a test complete with a joint test from parsing the request to checking the permissions, so I added tests related to both protocol clients. These additional tests would not have passed before my fix.