[Script Execution] Add support for GetBlockAtHeight on Access nodes

[peterargue]

After the devnet48 spork, we updated one of the Access nodes to use compare mode for script execution and get accounts. The following error is logged frequently:

[Error Code: 1057] operation (GetBlockAtHeight) is not supported in this environment

Full log line:

{"level":"debug","node_role":"access","node_id":"275db91e9217c9b3279866a262de746d2217d5598d6248c9278aa4e2f6fefeef","block_id":"2e95f2bcc8bba89e7c9ad40e18f3c79871f183eebf74f38f2ba1b083af79c61b","script":"import DelegatorManager from 0xe45c64ecfe31e465\nimport LiquidStakingConfig from 0xe45c64ecfe31e465\nimport FlowIDTableStaking from 0x9eca2b38b18b5dfe\nimport FlowEpoch from 0x9eca2b38b18b5dfe\n\npub fun main(): AnyStruct {\n    return {\n        \"StakingEnable\": FlowIDTableStaking.stakingEnabled(),\n        \"QuoteEpoch\": DelegatorManager.quoteEpochCounter,\n        \"FlowEpoch\": FlowEpoch.currentEpochCounter,\n        \"DelegatorLength\": DelegatorManager.getDelegatorsLength(),\n        \"UnprocessedUnstakeRequests\": DelegatorManager.requestedToUnstake,\n        \"WindowSizeBeforeStakingEnd\": LiquidStakingConfig.windowSizeBeforeStakingEnd,\n        \"CurrentView\": getCurrentBlock().view,\n        \"DefaultNodeID\": DelegatorManager.defaultNodeIDToStake,\n        \"DefaultDelegatorCommitted\": DelegatorManager.getApprovedDelegatorInfoByNodeID(nodeID: DelegatorManager.defaultNodeIDToStake).tokensCommitted,\n        \"TotalCommitted\": DelegatorManager.borrowCurrentQuoteEpochSnapshot().allDelegatorCommitted\n    }\n}","script_hash":"5e18fa11e36205fb4df2ce6241f4854c","execution_node_result":"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","local_error":"rpc error: code = Internal desc = failed to execute script: failed to execute script at block (2e95f2bcc8bba89e7c9ad40e18f3c79871f183eebf74f38f2ba1b083af79c61b): [Error Code: 1057] error caused by: 1 error occurred:\n\t* [Error Code: 1101] cadence runtime error: Execution failed:\nerror: [Error Code: 1057] operation (GetBlockAtHeight) is not supported in this environment\n  --> 7045b9bb26ab531810d35dab10b484b69f354e87eaed7a7068571b5ad545e04f:7:4\n   \|\n 7 \|     return {\n 8 \|         \"StakingEnable\": FlowIDTableStaking.stakingEnabled(),\n 9 \|         \"QuoteEpoch\": DelegatorManager.quoteEpochCounter,\n10 \|         \"FlowEpoch\": FlowEpoch.currentEpochCounter,\n11 \|  ... e,\n13 \|         \"WindowSizeBeforeStakingEnd\": LiquidStakingConfig.windowSizeBeforeStakingEnd,\n14 \|         \"CurrentView\": getCurrentBlock().view,\n15 \|         \"DefaultNodeID\": DelegatorManager.defaultNodeIDToStake,\n16 \|         \"DefaultDelegatorCommitted\": DelegatorManager.getApprovedDelegatorInfoByNodeID(nodeID: DelegatorManager.defaultNodeIDToStake).tokensCommitted,\n17 \|         \"TotalCommitted\": DelegatorManager.borrowCurrentQuoteEpochSnapshot().allDelegatorCommitted\n18 \|     }\n   \|     ^\n\n\n","time":"2023-10-26T03:23:21.51867387Z","message":"script execution results from local execution do not match EN"}
--