chore(pricefeeds) Add Giwa testnet (#850)

Author: aditya520

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

@@ -121,6 +121,7 @@ Pyth is currently available on the EVM networks below using Pyth Stable price so
 | Flow Testnet                      | <CopyAddress address="0x2880aB155794e7179c9eE2e38200202908C17B43" url="https://evm-testnet.flowscan.io/address/0x2880aB155794e7179c9eE2e38200202908C17B43" />                                           |
 | Fluent testnet                    | <CopyAddress address="0x2880aB155794e7179c9eE2e38200202908C17B43" url="https://testnet.fluentscan.xyz/address/0x2880aB155794e7179c9eE2e38200202908C17B43" />                                            |
 | Fuji (Avalanche testnet)          | <CopyAddress address="0x23f0e8FAeE7bbb405E7A7C3d60138FCfd43d7509" url="https://testnet.snowtrace.io/address/0x23f0e8FAeE7bbb405E7A7C3d60138FCfd43d7509" />                                              |
+| Giwa Testnet                      | <CopyAddress address="0x2880aB155794e7179c9eE2e38200202908C17B43" url="https://sepolia-explorer.giwa.io/address/0x2880aB155794e7179c9eE2e38200202908C17B43" />                                          |
 | Hedera testnet                    | <CopyAddress address="0xa2aa501b19aff244d90cc15a4cf739d2725b5729" url="https://hashscan.io/testnet/contract/0.0.3042133" />                                                                             |
 | Hemi testnet                      | <CopyAddress address="0x2880aB155794e7179c9eE2e38200202908C17B43" url="https://testnet.explorer.hemi.xyz/address/0x2880aB155794e7179c9eE2e38200202908C17B43" />                                         |
 | HyperEVM testnet                  | <CopyAddress address="0x2880aB155794e7179c9eE2e38200202908C17B43" url="https://testnet.purrsec.com/address/0x2880ab155794e7179c9ee2e38200202908c17b43" />                                               |