Avoid use of deprecated example property in test case

Signed-off-by: Michael Edgar <[email protected]>

Author: MikeEdgar

core/src/test/java/io/smallrye/openapi/runtime/scanner/StandaloneSchemaScanTest.java

@@ -903,7 +903,7 @@ void testKotlinNullableSetNonNullable() throws IOException, JSONException {
         @JsonInclude(JsonInclude.Include.NON_EMPTY)
         @Schema
         final class Bean {
-            @Schema(required = false, description = "Any description", nullable = false, example = "3072")
+            @Schema(required = false, description = "Any description", nullable = false, examples = "3072")
             @org.jetbrains.annotations.Nullable
             private final Long amount;