Reduce dagger version bump

Dagger versions above 2.51 cause a very weird error in which a
constant in the FeedbackSender code in appdistribution will end up
mangled and cause the tests to fail "ONLY IN RELEASE TESTS".

The

FILE_EXTENSION_JPG = .jpg

gets tur into change

FILE_EXTENSION_JPG = com.google.firebase.appdistribution.impl.jpg

causing the extension check to fail

Author: rlazo

firebase-appdistribution/src/main/java/com/google/firebase/appdistribution/impl/FeedbackSender.java

@@ -33,9 +33,9 @@ class FeedbackSender {
   static final String CONTENT_TYPE_PNG = "image/png";
 
   private static final String TAG = "FeedbackSender";
-  private static final String FILE_EXTENSION_JPG = "jpg";
-  private static final String FILE_EXTENSION_JPEG = "jpeg";
-  private static final String FILE_EXTENSION_PNG = "png";
+  private static final String FILE_EXTENSION_JPG = ".jpg";
+  private static final String FILE_EXTENSION_JPEG = ".jpeg";
+  private static final String FILE_EXTENSION_PNG = ".png";
   private static final String DEFAULT_FILENAME = "screenshot.png";
 
   private final ContentResolver contentResolver;

gradle/libs.versions.toml

@@ -18,7 +18,7 @@ checkerQual = "2.5.2"
 constraintlayout = "2.1.4"
 coreKtx = "1.12.0"
 coroutines = "1.9.0"
-dagger = "2.55"
+dagger = "2.51"                 # Don't bump above 2.51 as it causes a bug in AppDistro FeedbackSender JPEG code
 datastore = "1.1.3"
 dexmaker = "2.28.1"
 dexmakerVersion = "1.2"