Add Live API Testing

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We need to inject the following variables into these new tests:

• process.env.STAGING_GRAPHQL_ENDPOINT
  • URL of the staging graphQL API that we deploy with our code changes
• process.env.PG_CONN
  • Postgres connection string to query blocks from
  • This is only needed so that we can identify pending blocks with events and actions and test queries that specifically interact with pending data.
  • The tests are useful, even if we only use stable canonical fixtures, but pending would be much better coverage