Bump Gradle version to 7.5

[ikhoon]

Motivation:

The Gradle version of Central Dogma was stuck in 6.x version because the two Gradle plugins didn't work with Gradle 7.

• craigburke/client-dependencies-gradle#106
• gogradle/gogradle#328 So we need to migrate the obsolete plugins to move on Gradle 7

Modifications:

• Upgrade Gradle version to 7.5 from 6.8.3
• Remove :cli module and download cli binaries from the Central Dogma Go release page. https://github.com/line/centraldogma-go/releases/tag/0.0.1
• Migrate com.craigburke.client-dependencies into com.github.node-gradle.node:
  • Define dependendies using package.json.
  • Relocate js files in node_modules to vender folder.

Result:

Reduce technical debt

[ikhoon]

IntelliJ PR review is recommanded to fold/hide the changes in gradle/scripts

[codecov[bot]]

Codecov Report

Merging #707 (4ed8826) into master (f3b2b07) will increase coverage by 0.09%. The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #707      +/-   ##
============================================
+ Coverage     70.20%   70.30%   +0.09%     
  Complexity     3420     3420              
============================================
  Files           349      349              
  Lines         13482    13470      -12     
  Branches       1456     1454       -2     
============================================
+ Hits           9465     9470       +5     
- Misses         3137     3138       +1     
+ Partials        880      862      -18     

Impacted Files	Coverage Δ
...gma/testing/internal/CentralDogmaRuleDelegate.java	70.58% <ø> (+0.82%)	:arrow_up:
...server/internal/thrift/CentralDogmaExceptions.java	50.00% <0.00%> (-13.64%)	:arrow_down:
...ient/armeria/legacy/LegacyCentralDogmaBuilder.java	81.48% <0.00%> (-3.71%)	:arrow_down:
...centraldogma/server/internal/api/WatchService.java	76.27% <0.00%> (-3.39%)	:arrow_down:
...internal/storage/DirectoryBasedStorageManager.java	64.19% <0.00%> (-0.88%)	:arrow_down:
...in/java/com/linecorp/centraldogma/server/Main.java	0.00% <0.00%> (ø)
...internal/storage/repository/git/GitRepository.java	76.03% <0.00%> (+0.09%)	:arrow_up:
...internal/replication/ZooKeeperCommandExecutor.java	78.55% <0.00%> (+0.14%)	:arrow_up:
...com/linecorp/centraldogma/server/CentralDogma.java	77.46% <0.00%> (+0.18%)	:arrow_up:
.../centraldogma/server/metadata/MetadataService.java	90.61% <0.00%> (+0.20%)	:arrow_up:
... and 19 more

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