[Feature] Update to latest snarkVM using github actions

[vicsn]

Create a new github actions workflow which monitors the staging branch of the ProvableHQ/snarkVM repository. If a new commit has been pushed, the github action should:

• checkout a snarkOS branch called snarkvm-update.
• update the snarkVM dependency rev in Cargo.toml to the commit hash of the latest snarkVM staging branch commit.
• commit the changes using the --no-verify flag to ensure the git commit hook is not required to pass
• push the changes to the snarkvm-update branch

To make sure the above workflow succeeds, create a branch called snarkvm-update based on staging and open a draft PR into staging with the title: [Do Not Merge] snarkVM CI check