Clippy fixes (#2033)

* clippy fixed

* wasm clippy

* clippy fixes

* post clippy fmt

* last clippy fix

subxt/examples/block_decoding_dynamic.rs

@@ -35,7 +35,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
                 }
             }
             println!("    Fields:");
-            println!("      {}\n", fields);
+            println!("      {fields}\n");
         }
     }
 

subxt/examples/blocks_subscribing.rs

@@ -45,7 +45,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
                 let event_values = evt.field_values()?;
 
                 println!("        {pallet_name}_{event_name}");
-                println!("          {}", event_values);
+                println!("          {event_values}");
             }
 
             println!("      Transaction Extensions:");

subxt/examples/runtime_apis_static.rs

@@ -23,6 +23,6 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         .call(runtime_api_call)
         .await;
 
-    println!("AccountNonceApi_account_nonce for Alice: {:?}", nonce);
+    println!("AccountNonceApi_account_nonce for Alice: {nonce:?}");
     Ok(())
 }