Use safeConstructor instead of constructor when parsing yaml

[kevinw66]

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[codecov-io]

Codecov Report

Merging #7437 (c28eb3e) into master (b5c81d8) will increase coverage by 0.35%.
The diff coverage is 67.24%.

@@             Coverage Diff              @@
##             master    #7437      +/-   ##
============================================
+ Coverage     58.71%   59.07%   +0.35%     
- Complexity      422      502      +80     
============================================
  Files          1043     1074      +31     
  Lines         42514    43164     +650     
  Branches       6208     6297      +89     
============================================
+ Hits          24962    25499     +537     
- Misses        14769    14827      +58     
- Partials       2783     2838      +55     

Impacted Files	Coverage Δ	Complexity Δ
...er/condition/config/model/ConditionRuleParser.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...bo/rpc/cluster/router/tag/model/TagRuleParser.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
.../java/org/apache/dubbo/common/utils/BeanUtils.java	73.46% <73.46%> (ø)	0.00 <0.00> (?)
.../rpc/cluster/configurator/parser/ConfigParser.java	85.45% <100.00%> (-0.39%)	0.00 <0.00> (ø)
...a/org/apache/dubbo/rpc/filter/AccessLogFilter.java	26.86% <0.00%> (-52.24%)	0.00% <0.00%> (ø%)
...va/org/apache/dubbo/rpc/support/AccessLogData.java	53.16% <0.00%> (-37.98%)	0.00% <0.00%> (ø%)
.../cluster/configurator/parser/model/ConfigItem.java	48.00% <0.00%> (-24.00%)	0.00% <0.00%> (ø%)
...ng/transport/dispatcher/WrappedChannelHandler.java	43.47% <0.00%> (-19.57%)	0.00% <0.00%> (ø%)
...dubbo/common/status/support/LoadStatusChecker.java	46.15% <0.00%> (-15.39%)	0.00% <0.00%> (ø%)
...rg/apache/dubbo/remoting/utils/PayloadDropper.java	76.92% <0.00%> (-15.39%)	0.00% <0.00%> (ø%)
... and 97 more

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[AlbumenJ]

LGTM.

[chickenlj]

LGTM.

The implementation can not support all structures but at least it can meet the requirement at present