add workflow to publish mendix-gradle-plugin

Author: KevinVlaanderen

.github/gradle/publish-mendix-gradle-plugin.gradle

@@ -0,0 +1,16 @@
+allprojects {
+    pluginManager.withPlugin( 'maven-publish' ) {
+        publishing {
+            repositories {
+                maven {
+                    name = "GitHubPackages"
+                    url = "https://maven.pkg.github.com/mendix/MxPushNotifications"
+                    credentials {
+                        username = System.getenv("GITHUB_ACTOR")
+                        password = System.getenv("GITHUB_TOKEN")
+                    }
+                }
+            }
+        }
+    }
+}

.github/workflows/publish-mendix-gradle-plugin.yml

@@ -0,0 +1,29 @@
+name: Publish Mendix Gradle plugin
+on:
+  workflow_dispatch:
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          repository: 'mendixlabs/mendix-gradle-plugin'
+          ref: '114bde309b52b037583d95a9beffee18eb71b65f'
+          ssh-key: ${{ secrets.MENDIX_GRADLE_PLUGIN_SSH }}
+          ssh-strict: false
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: repo
+          sparse-checkout: .github/gradle
+      - run: cp repo/.github/gradle/publish-mendix-gradle-plugin.gradle ./
+      - uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 #4.7.1
+        with:
+          distribution: 'adopt'
+          java-version: '21'
+      - uses: gradle/actions/setup-gradle@06832c7b30a0129d7fb559bcc6e43d26f6374244 #4.3.1
+      - name: Build mendix-gradle-plugin
+        run: |
+          echo "kotlin.jvm.target.validation.mode = IGNORE" >> gradle.properties
+          ./gradlew -I publish-mendix-gradle-plugin.gradle build publish
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}