update to latest plugin

Author: pahjbo

.github/workflows/site.yml

@@ -30,7 +30,8 @@ jobs:
           # see https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-commands#adding-a-system-path
       - name: make sure bin directory exists
         run: mkdir -p "$THISDIR/bin"
-      - name: get latest plantuml;
+        #need the latest plantuml for entity relation diagrams - the ubuntu packaged one is quite old
+      - name: get latest plantuml
         run: |
           echo "$THISDIR/bin" >> "$GITHUB_PATH"
           curl -L -o plantuml.jar https://github.com/plantuml/plantuml/releases/download/v1.2026.1/plantuml-1.2026.1.jar
@@ -43,6 +44,7 @@ jobs:
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v4
 
+      #run with the headless environment explicitly
       - name: create site
         uses: coactions/setup-xvfb@v1
         with:

build.gradle.kts

@@ -1,6 +1,6 @@
 plugins {
     // this plugin provides all the vo-dml functionality
-    id("net.ivoa.vo-dml.vodmltools") version "0.5.29"
+    id("net.ivoa.vo-dml.vodmltools") version "0.5.30"
  //   id("org.kordamp.gradle.jandex") version "1.1.0"
 }