Update app to use enviroment RPC for GitHub actions

[ajamaica]

• Update Kotlin version to 1.7.20
• Add environment variables for DevNet validator URL and WSS
• Update compileSdkVersion and targetSdkVersion to 33
• Change Solana constructor to use custom RPCEndpoint
• Lower numeric tolerance for test files

[build.gradle]

• Update the Kotlin version from 1.7.10 to 1.7.20 [solana/src/test/java/com/solana/api/ApiTests.kt]
• Add system properties for validator URL and WSS
• Change Solana constructor to use custom RPCEndpoint
• Add imports for URL and Network
• Lower numeric tolerance for test files [.github/workflows/android.yml]
• Add environment variables for DevNet validator URL and WSS [solana/src/test/java/com/solana/networking/socket/SocketTests.kt]
• Add imports for DEVNET_VALIDATOR_URL and DEVNET_VALIDATOR_WSS
• Modify the socket initialization to use System.getProperty for the URL and WSS
• Add Network.devnet as an argument for the socket initialization [solana/build.gradle]
• Update compileSdkVersion from 30 to 33
• Update targetSdkVersion from 30 to 33

Description

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• https://linear.app/metaplex/issue/{LINEAR_ISSUE_ID}

Work Completed

• a brief description of all the work completed in this PR

API Changes

• A list of any changes made to the public API
• remove this section if no changes to the public API

Testing

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