Revert node version to simplify grunt issue

nodel-webui-js/build.gradle

@@ -45,7 +45,7 @@ def branch = gitInfo.branch
 version = gitInfo.branch != 'stable' ? "${project.version}-${branch}_r${rev}" : project.version
 
 node {
-    version = '16.20.2'
+    version = '12.19.0'
     download = true
 
     workDir = file("${project.buildDir}/nodejs")
@@ -85,32 +85,28 @@ class FileChecker {
 
 def fileChecker = new FileChecker(project)
 
-
-
-tasks.register('installGruntCli', NpmTask) {
-    def gruntCliInstalled = file('node_modules/grunt-cli').exists()
-
-    onlyIf { !gruntCliInstalled }
-
-    args = ['install', 'grunt-cli', '--save-dev', '--legacy-peer-deps']
-
-    outputs.dir('node_modules')
-}
-
 tasks.register('gruntRun', NpxTask) {
     def shouldInstall = fileChecker.checkFilesChanged()
 
     if (shouldInstall) {
-        dependsOn clean
+        dependsOn clean, npmInstall
     }
 
-    dependsOn 'installGruntCli'
     command = "grunt"
     args = ["build"]
+    inputs.property('filesChanged', shouldInstall)
     inputs.dir("node_modules")
     outputs.dir("build/grunt")
 
     onlyIf { shouldInstall }
+
+    doLast {
+        if (shouldInstall) {
+            logger.info('Running Grunt build task as files have changed or node_modules is missing.')
+        } else {
+            logger.info('Skipping Grunt build task as no files have changed and node_modules is present.')
+        }
+    }
 }
 
 tasks.named('clean', Delete) {