[explorer] Fix parsing of some Pyth transactions. (#29943)

Fix a couple of bugs

explorer/src/components/instruction/pyth/PythDetailsCard.tsx

@@ -13,6 +13,7 @@ import InitMappingDetailsCard from "./InitMappingDetailsCard";
 import AddMappingDetailsCard from "./AddMappingDetailsCard";
 import AggregatePriceDetailsCard from "./AggregatePriceDetailsCard";
 import InitPriceDetailsCard from "./InitPriceDetailsCard";
+import SetMinPublishersDetailsCard from "./SetMinPublishersDetailsCard";
 
 export function PythDetailsCard(props: {
   ix: TransactionInstruction;
@@ -109,6 +110,13 @@ export function PythDetailsCard(props: {
             {...props}
           />
         );
+      case "SetMinPublishers":
+        return (
+          <SetMinPublishersDetailsCard
+            info={PythInstruction.decodeSetMinPublishers(ix)}
+            {...props}
+          />
+        );
     }
   } catch (error) {
     reportError(error, {

explorer/src/components/instruction/pyth/program.ts

@@ -402,7 +402,7 @@ export class PythInstruction {
     return {
       signerPubkey: instruction.keys[0].pubkey,
       pricePubkey: instruction.keys[1].pubkey,
-      publisherPubkey: PublicKey.decode(publisherPubkey),
+      publisherPubkey: new PublicKey(publisherPubkey),
     };
   }
 
@@ -420,7 +420,7 @@ export class PythInstruction {
     return {
       signerPubkey: instruction.keys[0].pubkey,
       pricePubkey: instruction.keys[1].pubkey,
-      publisherPubkey: PublicKey.decode(publisherPubkey),
+      publisherPubkey: new PublicKey(publisherPubkey),
     };
   }