Optimize Spring-Security Firewall Deny Request Response 400

[klboke]

What's the purpose of this PR

• Before modification.
  Requesting a service using a non-compliant URL specification returns 500 and the server side reports an exception, e.g.

• After modification.
  Return 400 , e.g.

This scenario is more appropriate to use Bad Request (400), in our production environment, because of this problem, the gateway layer alerts often misreported Apollo Server exceptions

[codecov-commenter]

Codecov Report

Merging #4428 (09ecf07) into master (b8c795a) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master    #4428      +/-   ##
============================================
- Coverage     53.42%   53.42%   -0.01%     
  Complexity     2688     2688              
============================================
  Files           490      490              
  Lines         15254    15255       +1     
  Branches       1586     1586              
============================================
  Hits           8150     8150              
- Misses         6548     6549       +1     
  Partials        556      556              

Impacted Files	Coverage Δ
...ip/framework/apollo/common/ApolloCommonConfig.java	0.00% <0.00%> (ø)

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[nobodyiam]

LGTM