chore: bump to next major versions

Author: ChiragAgg5k

README.md

@@ -38,7 +38,7 @@ repositories {
 Next, add the dependency to your project's `build.gradle(.kts)` file:
 
 ```groovy
-implementation("io.appwrite:sdk-for-android:7.1.0")
+implementation("io.appwrite:sdk-for-android:8.0.0")
 ```
 
 ### Maven
@@ -49,7 +49,7 @@ Add this to your project's `pom.xml` file:
     <dependency>
         <groupId>io.appwrite</groupId>
         <artifactId>sdk-for-android</artifactId>
-        <version>7.1.0</version>
+        <version>8.0.0</version>
     </dependency>
 </dependencies>
 ```

library/src/main/java/io/appwrite/Client.kt

@@ -87,7 +87,7 @@ class Client @JvmOverloads constructor(
             "x-sdk-name" to "Android",
             "x-sdk-platform" to "client",
             "x-sdk-language" to "android",
-            "x-sdk-version" to "7.1.0",
+            "x-sdk-version" to "8.0.0",
             "x-appwrite-response-format" to "1.7.0"
         )
         config = mutableMapOf()