Bump experimental build from Java 26-ea to 27-ea and add Java 26

production build

Author: garydgregory

.github/workflows/maven.yml

@@ -32,10 +32,10 @@ jobs:
     strategy:
       max-parallel: 20
       matrix:
-        java: [ 8, 11, 17, 21, 25 ]
+        java: [ 8, 11, 17, 21, 25, 26 ]
         experimental: [false]
         include:
-            - java: 26-ea
+            - java: 27-ea
               experimental: true
 #            - java: 27-ea
 #              experimental: true