Add missing javaDoc

Issue gh-15818

oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/web/server/authentication/ServerBearerTokenAuthenticationConverter.java

@@ -152,6 +152,7 @@ public void setBearerTokenHeaderName(String bearerTokenHeaderName) {
 	 * Defaults to {@code false}.
 	 * @param allowFormEncodedBodyParameter if the form-encoded body parameter is
 	 * supported
+	 * @since 6.5
 	 */
 	public void setAllowFormEncodedBodyParameter(boolean allowFormEncodedBodyParameter) {
 		this.allowFormEncodedBodyParameter = allowFormEncodedBodyParameter;