Add depedency on protobuf

pubspec.lock

@@ -1063,6 +1063,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.2.4"
+  protobuf:
+    dependency: "direct main"
+    description:
+      name: protobuf
+      sha256: "4034a02b7e231e7e60bff30a8ac13a7347abfdac0798595fae0b90a3f0afe759"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
   provider:
     dependency: transitive
     description:

pubspec.yaml

@@ -59,6 +59,7 @@ dependencies:
   path_provider: ^2.0.11
   pinput: ^1.2.2
   pointycastle: ^3.7.3
+  protobuf: ^3.0.0
   qr_code_scanner: ^1.0.1
   sentry: ^6.12.1
   sentry_flutter: ^6.12.1