fix the build

Author: sujankota

cmdline/src/main/java/io/opentdf/platform/Command.java

@@ -69,7 +69,7 @@ void encrypt(
             @Option(names = { "--mime-type" }, defaultValue = Option.NULL_VALUE) Optional<String> mimeType,
             @Option(names = { "--with-assertions" }, defaultValue = Option.NULL_VALUE) Optional<String> assertion)
 
-            throws IOException, JOSEException, AutoConfigureException, InterruptedException, ExecutionException {
+            throws IOException, JOSEException, AutoConfigureException, InterruptedException, ExecutionException, DecoderException {
 
         var sdk = buildSDK();
         var kasInfos = kas.stream().map(k -> {