Add shibarium and corn testnet

.changeset/brown-needles-enjoy.md

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+---
+"chainlink": patch
+---
+
+added default configs for new chains

core/chains/evm/config/toml/defaults/Corn_Testnet.toml

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+ChainID = '21000001'
+FinalityTagEnabled = true
+ChainType = 'arbitrum'
+
+[GasEstimator]
+Mode = 'Arbitrum'
+LimitMax = 1_000_000_000
+# Arbitrum uses the suggested gas price, so we don't want to place any limits on the minimum
+PriceMin = '0'
+PriceDefault = '0.1 gwei'
+PriceMax = '1000 gwei'

core/chains/evm/config/toml/defaults/Shibarium_Mainnet.toml

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+ChainID = '109'
+FinalityTagEnabled = true
+LinkContractAddress = '0x71052BAe71C25C78E37fD12E5ff1101A71d9018F'
+LogPollInterval = '1s'
+MinIncomingConfirmations = 5
+NoNewHeadsThreshold = '30s'
+RPCBlockQueryDelay = 10
+RPCDefaultBatchSize = 100
+
+[Transactions]
+ResendAfterThreshold = '1m'
+
+[BalanceMonitor]
+Enabled = true
+
+[GasEstimator]
+EIP1559DynamicFees = true
+PriceDefault = '10 gwei'
+PriceMin = '2 gwei'
+BumpMin = '5 gwei'
+BumpThreshold = 5
+PriceMax = '10000 gwei'
+LimitDefault = 8000000
+FeeCapDefault = '10000 gwei'
+
+[GasEstimator.BlockHistory]
+# Default is 24, which leads to bumpy gas prices. In CCIP
+# we want to smooth out the gas prices, so we increase the sample size.
+BlockHistorySize = 200
+
+[HeadTracker]
+HistoryDepth = 300
+SamplingInterval = '1s'
+
+[NodePool]
+PollFailureThreshold = 2
+PollInterval = '3s'
+SyncThreshold = 10

core/chains/evm/config/toml/defaults/Shibarium_Testnet.toml

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+ChainID = '157'
+FinalityTagEnabled = true
+LinkContractAddress = '0x44637eEfD71A090990f89faEC7022fc74B2969aD'
+LogPollInterval = '1s'
+MinIncomingConfirmations = 5
+NoNewHeadsThreshold = '30s'
+RPCBlockQueryDelay = 10
+RPCDefaultBatchSize = 100
+
+[Transactions]
+ResendAfterThreshold = '1m'
+
+[BalanceMonitor]
+Enabled = true
+
+[GasEstimator]
+EIP1559DynamicFees = true
+PriceDefault = '10 gwei'
+PriceMin = '2 gwei'
+BumpMin = '5 gwei'
+BumpThreshold = 5
+PriceMax = '10000 gwei'
+LimitDefault = 8000000
+FeeCapDefault = '10000 gwei'
+
+[GasEstimator.BlockHistory]
+# Default is 24, which leads to bumpy gas prices. In CCIP
+# we want to smooth out the gas prices, so we increase the sample size.
+BlockHistorySize = 200
+
+[HeadTracker]
+HistoryDepth = 300
+SamplingInterval = '1s'
+
+[NodePool]
+PollFailureThreshold = 2
+PollInterval = '3s'
+SyncThreshold = 10