[Dubbo-7178] Fix 'java.io.FileNotFoundException' when 'dump.directory' not exists

[zenuo]

What is the purpose of the change

Fix 'java.io.FileNotFoundException' when 'dump.directory' not exists

Brief changelog

Try to create if not exists, if can't be created, use 'user.home' as dump directory.

Verifying this change

Link to issue: #7178

[codecov-io]

Codecov Report

Merging #7178 (8377798) into master (d70b151) will decrease coverage by 0.10%.
The diff coverage is 63.63%.

@@             Coverage Diff              @@
##             master    #7178      +/-   ##
============================================
- Coverage     60.04%   59.93%   -0.11%     
  Complexity      290      290              
============================================
  Files          1004     1004              
  Lines         40014    40024      +10     
  Branches       5941     5943       +2     
============================================
- Hits          24027    23989      -38     
- Misses        13286    13328      +42     
- Partials       2701     2707       +6     

Impacted Files	Coverage Δ	Complexity Δ
...mmon/threadpool/support/AbortPolicyWithReport.java	86.00% <63.63%> (-11.50%)	0.00 <0.00> (ø)
...ava/org/apache/dubbo/rpc/cluster/Configurator.java	4.00% <0.00%> (-32.00%)	0.00% <0.00%> (ø%)
.../remoting/transport/netty4/NettyServerHandler.java	61.36% <0.00%> (-9.10%)	0.00% <0.00%> (ø%)
...ng/transport/dispatcher/all/AllChannelHandler.java	82.75% <0.00%> (-6.90%)	0.00% <0.00%> (ø%)
.../apache/dubbo/remoting/transport/AbstractPeer.java	58.69% <0.00%> (-4.35%)	0.00% <0.00%> (ø%)
.../dubbo/registry/integration/RegistryDirectory.java	43.28% <0.00%> (-4.03%)	0.00% <0.00%> (ø%)
...e/dubbo/registry/integration/RegistryProtocol.java	53.45% <0.00%> (-2.84%)	0.00% <0.00%> (ø%)
...ubbo/registry/client/ServiceDiscoveryRegistry.java	47.64% <0.00%> (-2.36%)	0.00% <0.00%> (ø%)
...pache/dubbo/registry/support/FailbackRegistry.java	59.81% <0.00%> (-0.94%)	0.00% <0.00%> (ø%)
... and 2 more

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[AlbumenJ]

LGTM.