Update dependency androidx.annotation:annotation to v1.9.0

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

app/build.gradle

@@ -310,7 +310,7 @@ dependencies {
         exclude group: "com.android.support"
     }
     implementation 'com.caverock:androidsvg:1.4'
-    implementation 'androidx.annotation:annotation:1.8.2'
+    implementation 'androidx.annotation:annotation:1.9.0'
     implementation 'com.vanniktech:emoji-google:0.21.0'
 
     // document scanner not available on FDroid (generic) due to OpenCV binaries