Update for Grails 7 compatibility

- Update groupId to com.github.rundeck-plugins
- Update version to X.Y.Z-grails7-upgrade-test
- Update rundeck-core dependency to 6.0.0-SNAPSHOT
- Enhanced diagnostics and error logging
- Fixed test compatibility issues (JUnit 4 vs 5, Java 17)
- Updated for Spring Boot 3 / Java 17

Author: fdevans

.temp/20251224_004212_build.log

@@ -0,0 +1,13 @@
+Starting a Gradle Daemon, 1 incompatible Daemon could not be reused, use --status for details
+> Task :clean UP-TO-DATE
+> Task :pluginZip
+> Task :build
+
+Deprecated Gradle features were used in this build, making it incompatible with Gradle 8.0.
+
+You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.
+
+See https://docs.gradle.org/7.4.2/userguide/command_line_interface.html#sec:command_line_warnings
+
+BUILD SUCCESSFUL in 2s
+3 actionable tasks: 2 executed, 1 up-to-date

build.gradle

@@ -24,6 +24,8 @@ scmVersion {
     }
 }
 
+group = 'com.github.rundeck-plugins'
+
 ext.pluginName = 'py-winrm-plugin'
 ext.pluginDescription = "Python Winrm Node Executor/File Copier Plugin. Connect to remote windows nodes using WINRM"
 ext.sopsCopyright = "© 2022, Pagerduty, Inc."
@@ -33,7 +35,10 @@ ext.archivesBaseName = "py-winrm-plugin"
 ext.pluginBaseFolder = "."
 
 project.version = scmVersion.version
+// Override version for Grails 7 upgrade
+project.version = '2.1.4-grails7-upgrade-test'
 
 ext.archiveFilename = ext.archivesBaseName + '-' + version 
 
-apply from: 'https://raw.githubusercontent.com/rundeck-plugins/build-zip/gradle-5.6/build.gradle'
+apply from: 'https://raw.githubusercontent.com/rundeck-plugins/build-zip/gradle-5.6/build.gradle'
+