Update error prone to 2.50.0

Author: bertrik

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 dropwizard = "5.0.2"
-errorprone = "2.49.0"
+errorprone = "2.50.0"
 jackson = "2.22.0"
 jdbf = "2.2.4"
 jersey_media_sse = "3.1.11"

verkeersdrukte/src/main/java/nl/bertriksikken/shapefile/ShapeFile.java

@@ -137,6 +137,6 @@ public List<ShapeRecord> getRecords() {
         return List.copyOf(records);
     }
 
-    private static final class ShapeProperties extends LinkedHashMap<String, Object> {}
+    static final class ShapeProperties extends LinkedHashMap<String, Object> {}
 
 }