Bump chainlink/v2 -- valdiate confidential HTTP in simulator

[vreff]

This bump enables confidential HTTP in the CRE Simulator:

❯ ./cre workflow simulate ../confidential-compute/capabilities/workflows/blocknumber-tracker --target=staging-settings
Workflow compiled
2026-02-06T12:52:12Z [SIMULATION] Simulator Initialized

2026-02-06T12:52:12Z [SIMULATION] Running trigger trigger=cron-trigger@1.0.0
2026-02-06T12:52:12Z [USER LOG] msg="fetching por" url=https://mainnet.infura.io/v3/4b50ec6b9b744ba1b711290aff537410 evms="[{ReserveManagerAddress:0xd8c1F54593f8D5CBA92011335ef6AcC9E4F1c4a1 ChainName:ethereum-testnet-sepolia GasLimit:1000000}]"
2026-02-06T12:52:12Z [USER LOG] msg="[Crosschain blocknumber workflow] Calling confidential HTTP capability" url=https://mainnet.infura.io/v3/4b50ec6b9b744ba1b711290aff537410 payload="{\"method\":\"{{.method}}\",\"params\":[],\"id\":1,\"jsonrpc\":\"2.0\"}" headers="map[Authorization:values:\"Basic {{.infurasecret}}\" Content-Type:values:\"application/json\"]"
2026-02-06T12:52:13Z [USER LOG] msg="[Crosschain blocknumber workflow] Got confidential HTTP response" response="+\x93\xcc\"\x15\x8e\x85\xc9e\xda6\xef\xaa\xdd\xf2\xffu\x13\x18\xfb\xd0\xc0\xddHc\xc8m\xb7\x8e@\x12s\x8bL-\xa3\x17(\xaf\xc4}\xd1\xdbH\xe6*\x81r\xba\xb51\xc5*Rz၃#u튃\xb3\x95\xdf\xf7ޘɸ\x8f\xa7"
2026-02-06T12:52:13Z [USER LOG] msg="[Crosschain blocknumber workflow] Decrypted confidential HTTP response" decryptedResponse="{\"jsonrpc\":\"2.0\",\"id\":1,\"result\":\"0x1744e22\"}"
2026-02-06T12:52:13Z [USER LOG] msg="[Crosschain blocknumber workflow] Got block number" response=24399394
2026-02-06T12:52:13Z [USER LOG] msg="Updating reserves" totalSupply=0 totalReserveScaled=24399394
2026-02-06T12:52:13Z [USER LOG] msg="Writing report" totalSupply=0 totalReserveScaled=24399394
2026-02-06T12:52:13Z [USER LOG] msg="Write report succeeded" response="tx_status:TX_STATUS_SUCCESS receiver_contract_execution_status:RECEIVER_CONTRACT_EXECUTION_STATUS_SUCCESS transaction_fee:{}"
2026-02-06T12:52:13Z [USER LOG] msg="Write report transaction succeeded at" txHash=0x0000000000000000000000000000000000000000000000000000000000000000

Workflow Simulation Result:
 "24399394"

2026-02-06T12:52:13Z [SIMULATION] Execution finished signal received
2026-02-06T12:52:13Z [SIMULATION] Skipping WorkflowEngineV2

[github-actions]

👋 vreff, thanks for creating this pull request!

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[prashantkumar1982]

this should be multi_headers right?