Extend the length of AppId from 32 to 64 characters.

[Ayden-Franklin]

What's the purpose of this PR

在项目中经常会遇到公司的项目有固定的前缀和格式，项目ID大于32字符的情况，这次扩展为64字符。有其它人也遇到了这个问题，迫切需要扩展这个字段的长度限制。

Which issue(s) this PR fixes:

Fixes #3213

Brief changelog

1. 把表中AppID字段的长度从32改为64
2. 把前端javascript中校验规则中32改为64

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[codecov-commenter]

Codecov Report

Merging #3228 into master will decrease coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #3228      +/-   ##
============================================
- Coverage     51.17%   51.16%   -0.02%     
+ Complexity     2275     2274       -1     
============================================
  Files           440      440              
  Lines         13660    13660              
  Branches       1389     1389              
============================================
- Hits           6991     6989       -2     
- Misses         6185     6186       +1     
- Partials        484      485       +1     

Impacted Files	Coverage Δ	Complexity Δ
.../apollo/internals/RemoteConfigLongPollService.java	77.10% <0.00%> (-1.21%)	28.00% <0.00%> (-1.00%)

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[nobodyiam]

Please update the ddl for k8s and docker-quick-start.
Also don't forget the delta ddl in flyway and delta folders

[Ayden-Franklin]

I modified the SQL files for flyway.

[nobodyiam]

LGTM

[nobodyiam]

LGTM