refactor: refactor Functions class with lambda

[Anthony-Lu]

refactor Functions class with lambda

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[Anthony-Lu]

I have read the CLA Document and I hereby sign the CLA

[codecov-commenter]

Codecov Report

Merging #4419 (903b413) into master (9b1cd8f) will decrease coverage by 0.02%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #4419      +/-   ##
============================================
- Coverage     53.37%   53.34%   -0.03%     
+ Complexity     2684     2683       -1     
============================================
  Files           490      490              
  Lines         15252    15245       -7     
  Branches       1586     1586              
============================================
- Hits           8141     8133       -8     
- Misses         6552     6553       +1     
  Partials        559      559              

Impacted Files	Coverage Δ
...trip/framework/apollo/util/function/Functions.java	100.00% <100.00%> (ø)
...work/apollo/biz/message/DatabaseMessageSender.java	56.25% <0.00%> (-8.34%)	⬇️
...o/openapi/filter/ConsumerAuthenticationFilter.java	94.11% <0.00%> (-5.89%)	⬇️
...nfigservice/service/AccessKeyServiceWithCache.java	82.65% <0.00%> (-2.05%)	⬇️
...ework/apollo/internals/RemoteConfigRepository.java	87.73% <0.00%> (+2.45%)	⬆️
...work/apollo/biz/message/ReleaseMessageScanner.java	85.52% <0.00%> (+2.63%)	⬆️

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[nobodyiam]

LGTM