Update actions/setup-java action to v4 #226

	name: Generate dependency diff

	on:
	pull_request:
	branches:
	- master
	- main
	- trunk
	- develop
	- maine
	- mane

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}

	jobs:
	generate-diff:
	env:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Write Gradle build properties to `~/.gradle/gradle.properties`
	run: \|
	mkdir -p ~/.gradle
	printf "org.gradle.jvmargs=-Xmx3G -XX:+UseParallelGC\n" >> ~/.gradle/gradle.properties
	printf "org.gradle.vfs.watch=false\n" >> ~/.gradle/gradle.properties
	shell: bash

	- uses: actions/setup-java@v4
	with:
	distribution: 'temurin'
	java-version: 21

	- uses: gradle/gradle-build-action@v2

	- run: ./gradlew assemble -m

	- id: dependency-diff
	name: Generate dependency diff
	uses: usefulness/dependency-tree-diff-action@v1
	with:
	project: 'webp-imageio'
	configuration: runtimeClasspath

	- uses: peter-evans/find-comment@v2
	id: find_comment
	with:
	issue-number: ${{ github.event.pull_request.number }}
	body-includes: Dependency diff

	- uses: peter-evans/create-or-update-comment@v3
	if: ${{ steps.dependency-diff.outputs.text-diff != null \|\| steps.find_comment.outputs.comment-id != null }}
	with:
	body: \|
	Dependency diff:
	```diff
	${{ steps.dependency-diff.outputs.text-diff }}
	```
	edit-mode: replace
	comment-id: ${{ steps.find_comment.outputs.comment-id }}
	issue-number: ${{ github.event.pull_request.number }}
	token: ${{ secrets.GITHUB_TOKEN }}

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