Update test dependencies and Maven plugins

[martin-g]

What is the purpose of the change

I am trying to build Dubbo on ARM64 hardware and there are some test failures due to a usage of old versions of some test dependencies:

/tmp/1614937941285-0/redis-server-2.8.19: 1: ELF: not found                                                                                                                                                    
/tmp/1614937941285-0/redis-server-2.8.19: 2: Syntax error: word unexpected (expecting ")")             
/tmp/1614937941372-0/redis-server-2.8.19: 1: ELF: not found                                                                                                                                                    
/tmp/1614937941372-0/redis-server-2.8.19: 2: Syntax error: word unexpected (expecting ")")                                                                                                                     
/tmp/1614937941446-0/redis-server-2.8.19: 1: ELF: not found                                                                                                                                                    
/tmp/1614937941446-0/redis-server-2.8.19: 2: Syntax error: word unexpected (expecting ")")                                                                                                                     
/tmp/1614937941484-0/redis-server-2.8.19: 1: ELF: not found                                                                                                                                                    
/tmp/1614937941484-0/redis-server-2.8.19: 2: Syntax error: word unexpected (expecting ")")                                                                                                                     
/tmp/1614937941520-0/redis-server-2.8.19: 1: ELF: not found                                                                                                                                                    
/tmp/1614937941520-0/redis-server-2.8.19: 2: Syntax error: word unexpected (expecting ")")                                                                                                                     
/tmp/1614937941556-0/redis-server-2.8.19: 1: ELF: not found                                                                                                                                                    
/tmp/1614937941556-0/redis-server-2.8.19: 2: Syntax error: word unexpected (expecting ")")                                                                                                                     
[ERROR] Tests run: 6, Failures: 0, Errors: 6, Skipped: 0, Time elapsed: 0.735 s <<< FAILURE! - in 
org.apache.dubbo.metadata.store.redis.RedisMetadataReportTest                                               
[ERROR] testSyncStoreProvider  
Time elapsed: 0.497 s  <<< ERROR!                                                                                                                                               
java.lang.RuntimeException: Can't start redis server. Check logs for details.                                                                                                                                          
at org.apache.dubbo.metadata.store.redis.RedisMetadataReportTest.constructor(RedisMetadataReportTest.java:80)                                                                                                                                                                     

Brief changelog

This PR updates the test infrastructure dependencies (JUnit, Mockito, Hamcrest,...) and (build related) Maven plugins.

The embedded-redis issue will be addressed in a separate PR.

Verifying this change

The build and tests are still OK after the updates!

[codecov-io]

Codecov Report

Merging #7330 (0318221) into master (eef6b45) will decrease coverage by 0.25%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #7330      +/-   ##
============================================
- Coverage     59.05%   58.80%   -0.26%     
+ Complexity      462      461       -1     
============================================
  Files          1044     1044              
  Lines         42480    42436      -44     
  Branches       6229     6198      -31     
============================================
- Hits          25088    24953     -135     
- Misses        14592    14673      +81     
- Partials       2800     2810      +10     

Impacted Files	Coverage Δ	Complexity Δ
...ng/transport/dispatcher/all/AllChannelHandler.java	62.06% <0.00%> (-20.69%)	0.00% <0.00%> (ø%)
...bbo/common/bytecode/CustomizedLoaderClassPath.java	28.00% <0.00%> (-16.00%)	0.00% <0.00%> (ø%)
...va/org/apache/dubbo/remoting/exchange/Request.java	72.54% <0.00%> (-15.69%)	0.00% <0.00%> (ø%)
...ng/transport/dispatcher/WrappedChannelHandler.java	47.82% <0.00%> (-15.22%)	0.00% <0.00%> (ø%)
...dubbo/remoting/exchange/support/DefaultFuture.java	74.33% <0.00%> (-13.70%)	0.00% <0.00%> (ø%)
...dubbo/common/status/support/LoadStatusChecker.java	50.00% <0.00%> (-11.54%)	0.00% <0.00%> (ø%)
...in/java/org/apache/dubbo/common/utils/JVMUtil.java	81.13% <0.00%> (-11.33%)	0.00% <0.00%> (ø%)
...va/org/apache/dubbo/remoting/TimeoutException.java	22.22% <0.00%> (-11.12%)	0.00% <0.00%> (ø%)
...che/dubbo/remoting/transport/mina/MinaChannel.java	39.47% <0.00%> (-10.53%)	15.00% <0.00%> (-1.00%)
.../apache/dubbo/rpc/protocol/AsyncToSyncInvoker.java	62.06% <0.00%> (-10.35%)	0.00% <0.00%> (ø%)
... and 43 more

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[AlbumenJ]

LGTM.