upgrade to hummingbird 1.5.4 which handles legacy encoding in uppercase

build.gradle

@@ -51,7 +51,7 @@ dependencies {
     implementation('com.github.arteam:simple-json-rpc-server:1.0') {
         exclude group: 'org.slf4j'
     }
-    implementation('com.sparrowwallet:hummingbird:1.5.3')
+    implementation('com.sparrowwallet:hummingbird:1.5.4')
     implementation('com.nativelibs4java:bridj:0.7-20140918-3') {
         exclude group: 'com.google.android.tools', module: 'dx'
     }

src/main/java/com/sparrowwallet/sparrow/control/QRScanDialog.java

@@ -147,8 +147,8 @@ public class QRScanDialog extends Dialog<QRScanDialog.Result> {
             Matcher partMatcher = PART_PATTERN.matcher(qrtext);
 
             if(qrtext.toLowerCase().startsWith(UR.UR_PREFIX)) {
-                if(LegacyURDecoder.isLegacyURFragment(qrtext.toLowerCase())) {
-                    legacyDecoder.receivePart(qrtext.toLowerCase());
+                if(LegacyURDecoder.isLegacyURFragment(qrtext)) {
+                    legacyDecoder.receivePart(qrtext);
                     Platform.runLater(() -> percentComplete.setValue(legacyDecoder.getPercentComplete()));
 
                     if(legacyDecoder.isComplete()) {