fix(jte): Add a custom PR body and title for the UpgradeNextMajorPare…

…ntVersion recipe. (#627)

* fix(jte): Use conventional commit for the title, and create a custom body for the UpgradeNextMajorParentVersion recipe.

* fix(jte): Use conventional commit for the title, and create a custom body for the UpgradeNextMajorParentVersion recipe.

plugin-modernizer-core/src/main/jte/pr-body-UpgradeNextMajorParentVersion.jte

@@ -0,0 +1,28 @@
+@import io.jenkins.tools.pluginmodernizer.core.model.Plugin
+@import io.jenkins.tools.pluginmodernizer.core.model.Recipe
+@param Plugin plugin
+@param Recipe recipe
+Hello `${plugin.getName()}` developers! :wave:
+
+This is an automated pull request created by the [Jenkins Plugin Modernizer](https://github.com/jenkins-infra/plugin-modernizer-tool) tool. The tool has applied the following recipes to modernize the plugin:
+<details aria-label="Recipe details for ${recipe.getDisplayName()}">
+    <summary>${recipe.getDisplayName()}</summary>
+    <p><em>${recipe.getName()}</em></p>
+    <blockquote>${recipe.getDescription()}</blockquote>
+</details>
+
+#### Why Upgrade to Java 17 and Jenkins 2.479.x?
+
+- **Embrace Java 17 LTS Stability:** Benefit from long-term support with modern language features that improve development practice and plugin performance.
+
+- **Harness Jenkins 2.479.x Innovations:** Stay aligned with the latest features and stability improvements, ensuring smooth integration and future-proofing.
+
+- **Enhance Security:** Protect your plugin with up-to-date security fixes from both Java 17 and Jenkins core improvements.
+
+- **Align with the Community:** Keep pace with ecosystem shifts towards Java 17, ensuring compatibility and expanding your plugin's user base.
+
+- **Enjoy a Better Developer Experience:** Make the most of advanced tooling support and simplified dependency management with Java 17's enhancements.
+
+By upgrading, you'll be positioning your plugin at the forefront of performance, security, and user satisfaction. We encourage you to explore these updates and provide feedback. Let's continue to build a robust Jenkins ecosystem together!
+
+

plugin-modernizer-core/src/main/jte/pr-title-UpgradeNextMajorParentVersion.jte

@@ -2,4 +2,4 @@
 @import io.jenkins.tools.pluginmodernizer.core.model.Recipe
 @param Plugin plugin
 @param Recipe recipe
-Require ${plugin.getMetadata().getJenkinsVersion()} and Java 17
+feat(java): Require Jenkins core ${plugin.getMetadata().getJenkinsVersion()} and Java 17.

plugin-modernizer-core/src/test/java/io/jenkins/tools/pluginmodernizer/core/utils/TemplateUtilsTest.java

@@ -299,7 +299,7 @@ public void testFriendlyPrTitleUpgradeNextMajorParentVersion() {
         String result = TemplateUtils.renderPullRequestTitle(plugin, recipe);
 
         // Assert
-        assertEquals("Require 2.479.1 and Java 17", result);
+        assertEquals("feat(java): Require Jenkins core 2.479.1 and Java 17.", result);
     }
 
     @Test