Bump actions/setup-java from 1 to 2.1.0

[dependabot]

Bumps actions/setup-java from 1 to 2.1.0.

Release notes

Sourced from actions/setup-java's releases.

v2.1.0

Add support for Adopt OpenJDK OpenJ9:

Supported distributions

Currently, the following distributions are supported:

Keyword	Distribution	Official site	License
zulu	Zulu OpenJDK	Link	Link
adopt or adopt-hotspot	Adopt OpenJDK Hotspot	Link	Link
adopt-openj9	Adopt OpenJDK OpenJ9	Link	Link

v2.0.0

The major release actions/setup-java@v2

See more details in README file.

This action provides the following functionality for GitHub Actions runners:

• Downloading and setting up a requested version of Java. See Usage for a list of supported distributions
• Extracting and caching custom version of Java from a local file
• Configuring runner for publishing using Apache Maven
• Configuring runner for publishing using Gradle
• Configuring runner for using GPG private key
• Registering problem matchers for error output

V2 vs V1

• V2 supports custom distributions and provides support for Zulu OpenJDK and Adopt OpenJDK out of the box. V1 supports only Zulu OpenJDK
• V2 requires you to specify distribution along with the version. V1 defaults to Zulu OpenJDK, only version input is required. Follow the migration guide to switch from V1 to V2

Usage

Inputs java-version and distribution are mandatory. See Supported distributions section for a list of available options.

Basic

Adopt OpenJDK

steps:
- uses: actions/checkout@v2
- uses: actions/setup-java@v2
  with:
    distribution: 'adopt' # See 'Supported distributions' for available options
    java-version: '11'
- run: java -cp java HelloWorldApp

Zulu OpenJDK

steps:
- uses: actions/checkout@v2
- uses: actions/setup-java@v2
  with:
    distribution: 'zulu' # See 'Supported distributions' for available options
    java-version: '11'
</tr></table> 

... (truncated)

Commits

• d9126d7 Bump hosted-git-info from 2.8.8 to 2.8.9 (#178)
• 53ac717 Improve README and advanced usage guide (#174)
• cbc183b Added 'adopt-hotspot' and 'adopt-openj9' (#155)
• 0443912 Fix typo in documentation "jdkfile" (#167)
• 56b2808 Fix typo on distribution "jdkfile" (#163)
• 00401c4 add cron for e2e tests, twice a day (#162)
• 1e063f2 Fix navigation issue of supported distributions (#153)
• 8764a52 Rename v2-preview to v2 in docs and tests (#151)
• b53500d Merge "v2-preview" branch into "main" (#150)
• ebb424f Beatify "main" warning about breaking changes (#144)
• Additional commits viewable in compare view

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