fix: upgrade BlurView android dependency to 2.0.4 (Kureev#626)

* chore: use newer version of blurView

This is needed because the older version of `com.github.Dimezis:BlurView:version-2.0.3` is returning malformed shas which annoys our nix setup that expects reproducible builds every time.

I noticed that `com.github.Dimezis:BlurView:version-2.0.4` always returns a consistent sha.

Example :

> curl -s https://jitpack.io/com/github/Dimezis/BlurView/version-2.0.4/BlurView-version-2.0.4.pom | md5sum
bc6f937d2ba82396257f6fc5f5247c0d  -

> curl -s https://jitpack.io/com/github/Dimezis/BlurView/version-2.0.4/BlurView-version-2.0.4.pom | md5sum
bc6f937d2ba82396257f6fc5f5247c0d  -

> curl -s https://jitpack.io/com/github/Dimezis/BlurView/version-2.0.4/BlurView-version-2.0.4.pom | md5sum
bc6f937d2ba82396257f6fc5f5247c0d  -

> curl -s https://jitpack.io/com/github/Dimezis/BlurView/version-2.0.4/BlurView-version-2.0.4.pom | md5sum
bc6f937d2ba82396257f6fc5f5247c0d  -

> curl -s https://jitpack.io/com/github/Dimezis/BlurView/version-2.0.4/BlurView-version-2.0.4.pom | md5sum
bc6f937d2ba82396257f6fc5f5247c0d  -

> curl -s https://jitpack.io/com/github/Dimezis/BlurView/version-2.0.4/BlurView-version-2.0.4.pom | md5sum
bc6f937d2ba82396257f6fc5f5247c0d  -

> curl -s https://jitpack.io/com/github/Dimezis/BlurView/version-2.0.4/BlurView-version-2.0.4.pom | md5sum
bc6f937d2ba82396257f6fc5f5247c0d  -

* chore: specify namespace for AGP8

android/build.gradle

@@ -29,6 +29,7 @@ def getExtOrIntegerDefault(name) {
 
 android {
   compileSdkVersion getExtOrIntegerDefault('compileSdkVersion')
+  namespace "com.reactnativecommunity.blurview"
 
   defaultConfig {
     minSdkVersion getExtOrIntegerDefault('minSdkVersion')
@@ -138,5 +139,5 @@ dependencies {
   implementation "com.facebook.react:react-native:+"
   // From node_modules
 
-  implementation 'com.github.Dimezis:BlurView:version-2.0.3'
+  implementation 'com.github.Dimezis:BlurView:version-2.0.4'
 }