Confirm/remove/modify npm prerequisite for github actions

[gerhean]

What feature(s) would you like to see in RepoSense?

Probably related to #1286.

This package installs node into ./build/node/ directory when gradle is set up. https://github.com/reposense/RepoSense/blob/a4ee1877a9fc47abde0592201ae489911a4bb604/build.gradle#L10

Tasks of type com.liferay.gradle.plugins.node.tasks.ExecuteNpmTask uses the node in ./build/node/ to run. https://github.com/reposense/RepoSense/blob/a4ee1877a9fc47abde0592201ae489911a4bb604/build.gradle#L114-L117

Investigate if it is okay to remove node requirement in ./.github/workflows/integration.yml https://github.com/reposense/RepoSense/blob/a4ee1877a9fc47abde0592201ae489911a4bb604/.github/workflows/integration.yml#L37-L40

Alternatively maybe change com.liferay to use local node instead of downloading it into the build folder.

Is the feature request related to a problem?

The presence of node in github actions is confusing if it is not being used.