chore: Update matrix dart sdk to pub again

pubspec.lock

@@ -1113,12 +1113,11 @@ packages:
   matrix:
     dependency: "direct main"
     description:
-      path: "."
-      ref: HEAD
-      resolved-ref: e772d4db6887ce853b0d685b45fb502ba0a4caca
-      url: "https://github.com/famedly/matrix-dart-sdk.git"
-    source: git
-    version: "3.0.0"
+      name: matrix
+      sha256: "84354dd61f47b297631a3fe5eeebb5c1e0725f872b8fae75851a49cd5689c4f1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.1"
   meta:
     dependency: transitive
     description:

pubspec.yaml

@@ -52,8 +52,7 @@ dependencies:
   just_audio: ^0.10.5
   latlong2: ^0.9.1
   linkify: ^5.0.0
-  matrix:
-    git: https://github.com/famedly/matrix-dart-sdk.git
+  matrix: ^3.0.1
   mime: ^2.0.0
   native_imaging: ^0.2.0
   opus_caf_converter_dart: ^1.0.1