update ios sdk version

Author: AyushBherwani1998

docs/sdk/pnp/ios/ios.mdx

@@ -13,7 +13,7 @@ a private key generated in a non custodial way on successful authentication of t
 authentication can be achieved by using any of the social logins Web3Auth provides or using a custom
 authentication flow of your choice.
 
-#### This Documentation is based on the `8.1.0` SDK Version.
+#### This Documentation is based on the `8.1.1` SDK Version.
 
 ### Requirements
 

src/common/sdk/pnp/ios/_cocoapods.mdx

@@ -3,7 +3,7 @@ To install the Web3Auth SDK using Cocoapods, follow the below steps:
 1. Open the Podfile, and add the Web3Auth pod:
 
 ```sh
-pod 'Web3Auth', '~> 8.1.0'
+pod 'Web3Auth', '~> 8.1.1'
 ```
 
 2. Once added, use `pod install` command to download the Web3Auth dependency.

src/common/sdk/pnp/ios/_spm.mdx

@@ -6,7 +6,7 @@
    https://github.com/Web3Auth/web3auth-swift-sdk
    ```
 
-   From the `Dependency Rule` dropdown, select `Exact Version` and enter `8.1.0` as the version.
+   From the `Dependency Rule` dropdown, select `Exact Version` and enter `8.1.1` as the version.
 
 3. When finished, Xcode will automatically begin resolving and downloading your dependencies in the
    background.