Allow manual trigger of Renovate workflow

v4 causes an error

.github/workflows/renovate.yml

@@ -3,6 +3,7 @@ name: Run Renovate
 on:
   schedule:
     - cron: "13 * * * *"
+  workflow_dispatch:
 
 jobs:
   renovate:
@@ -33,7 +34,8 @@ jobs:
           RENOVATE_TOKEN: ${{ secrets.renovate_token }}
 
       - name: Save log file
-        uses: actions/upload-artifact@v4
+        # FIXME: v4 of this action causes an error on Forgejo (“You must configure a GitHub token”)
+        uses: actions/upload-artifact@v3
         with:
           name: renovate-log.ndjson
           path: renovate-log.ndjson

build.gradle

@@ -172,6 +172,7 @@ tasks.register('processSource', Sync) {
     line -> line
       .replaceAll('__builddate__', new Date().format("d MMM yyyy"))
       .replaceAll('__commithash__', gitOutput.toString().trim())
+      .replaceAll('__version__', version)
   } into "${project.buildDir}/src"
 }
 

src/main/java/helma/main/Server.java

@@ -36,7 +36,7 @@ import helma.util.ResourceProperties;
  */
 public class Server implements Runnable {
     // version string
-    public static final String version = "🐜";
+    public static final String version = "__version__";
 
     // build date
     public static final String buildDate = "__builddate__";
@@ -151,13 +151,8 @@ public class Server implements Runnable {
     public static void checkJavaVersion() {
         String javaVersion = System.getProperty("java.version");
 
-        if ((javaVersion == null) || javaVersion.startsWith("1.5")
-                                  || javaVersion.startsWith("1.4")
-                                  || javaVersion.startsWith("1.3")
-                                  || javaVersion.startsWith("1.2")
-                                  || javaVersion.startsWith("1.1")
-                                  || javaVersion.startsWith("1.0")) {
-            System.err.println("This version of Helma requires Java 1.6 or greater.");
+        if ((javaVersion == null) || !javaVersion.startsWith("11")) {
+            System.err.println("This version of Helma requires Java 11 or greater.");
 
             if (javaVersion == null) { // don't think this will ever happen, but you never know
                 System.err.println("Your Java Runtime did not provide a version number. Please update to a more recent version.");