Merge branch 'krille/updatesdkk' into 'main'

update sdk

See merge request famedly/fluffychat!826

pubspec.lock

@@ -1011,7 +1011,7 @@ packages:
       name: matrix
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.8.19"
+    version: "0.8.20"
   matrix_api_lite:
     dependency: transitive
     description:

pubspec.yaml

@@ -57,7 +57,7 @@ dependencies:
   keyboard_shortcuts: ^0.1.4
   localstorage: ^4.0.0+1
   lottie: ^1.2.2
-  matrix: ^0.8.19
+  matrix: ^0.8.20
   matrix_link_text: ^1.0.2
   native_imaging:
     git: https://gitlab.com/famedly/company/frontend/libraries/native_imaging.git