solana: Revert getVersion on error to return "2.0.0"

Author: nvsriram

solana/ts/sdk/ntt.ts

@@ -619,7 +619,7 @@ export class SolanaNtt<N extends Network, C extends SolanaChains>
       );
     } catch (e) {
       // This might happen if e.g. the program is not deployed yet.
-      const version = "3.0.0";
+      const version = "2.0.0";
       return version;
     }
   }