Rewrite build config to kokuwa.io infrastructure

.woodpecker/build.yaml

@@ -0,0 +1,39 @@
+when:
+  instance: ci.kokuwa.io
+  repo: keycloak/keycloak-event-metrics
+  event: [manual, push]
+  branch: main
+  path: [.woodpecker/build.yaml, pom.xml, src/main/**]
+
+services:
+  - name: dockerd
+    image: kokuwaio/dockerd
+    privileged: true
+    ports: [2375, 8080]
+
+steps:
+
+  deploy:
+    image: maven:3.9.9-eclipse-temurin-17
+    commands: mvn deploy
+    environment:
+      MAVEN_ARGS: --batch-mode --color=always --no-transfer-progress --settings=.woodpecker/maven/settings.xml
+      MAVEN_GPG_KEY: {from_secret: woodpecker_gpg_key}
+      SONATYPE_ORG_USERNAME: {from_secret: sonatype_org_username}
+      SONATYPE_ORG_PASSWORD: {from_secret: sonatype_org_password}
+
+  release:
+    image: maven:3.9.9-eclipse-temurin-17
+    commands:
+      - git config user.email "$GIT_USER_EMAIL"
+      - git config user.name "$GIT_USER_NAME"
+      - mvn release:prepare release:perform --settings=.woodpecker/maven/settings.xml
+    environment:
+      MAVEN_ARGS: --batch-mode --color=always --no-transfer-progress -DskipTests -DautoPublish=false
+      MAVEN_GPG_KEY: {from_secret: woodpecker_gpg_key}
+      SONATYPE_ORG_USERNAME: {from_secret: sonatype_org_username}
+      SONATYPE_ORG_PASSWORD: {from_secret: sonatype_org_password}
+      DOCKER_IO_USERNAME: {from_secret: docker_io_username}
+      DOCKER_IO_PASSWORD: {from_secret: docker_io_password}
+      GHCR_IO_USERNAME: {from_secret: ghcr_io_username}
+      GHCR_IO_PASSWORD: {from_secret: ghcr_io_password}