chore(pricefeeds) Add Megaeth (#643)

Author: aditya520

pages/price-feeds/contract-addresses/evm.mdx

@@ -135,6 +135,7 @@ Pyth is currently available on the EVM networks below using Pyth Stable price so
 | Manta testnet                     | [`0x41c9e39574F40Ad34c79f1C99B66A45eFB830d4c`](https://pacific-explorer.testnet.manta.network/address/0x41c9e39574F40Ad34c79f1C99B66A45eFB830d4c)                            |
 | Manta Sepolia                     | [`0xA2aa501b19aff244D90cc15a4Cf739D2725B5729`](https://pacific-explorer.sepolia-testnet.manta.network/address/0xA2aa501b19aff244D90cc15a4Cf739D2725B5729)                    |
 | Mantle sepolia                    | [`0x98046Bd286715D3B0BC227Dd7a956b83D8978603`](https://explorer.sepolia.mantle.xyz/address/0x98046Bd286715D3B0BC227Dd7a956b83D8978603)                                       |
+| MegaEth Testnet                   | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://www.megaexplorer.xyz/address/0x2880aB155794e7179c9eE2e38200202908C17B43)                                              |
 | Merlin testnet                    | [`0xA2aa501b19aff244D90cc15a4Cf739D2725B5729`](https://testnet-scan.merlinchain.io/address/0xA2aa501b19aff244D90cc15a4Cf739D2725B5729)                                       |
 | Merlin testnet V2                 | [`0xA2aa501b19aff244D90cc15a4Cf739D2725B5729`](https://testnet-scan-v2.merlinchain.io/address/0xA2aa501b19aff244D90cc15a4Cf739D2725B5729)                                    |
 | Meter testnet                     | [`0x5a71C07a0588074443545eE0c08fb0375564c3E4`](https://scan-warringstakes.meter.io/address/0x5a71C07a0588074443545eE0c08fb0375564c3E4)                                       |