Cleanup format arguments (#2650)

Inlined format args make code more readable, and code more compact.

I ran this clippy command to fix most cases, and then cleaned up a few trailing commas and uncaught edge cases.

```
cargo clippy --bins --examples  --benches --tests --lib --workspace --fix -- -A clippy::all -W clippy::uninlined_format_args
```

sqlx-cli/src/database.rs

@@ -73,7 +73,7 @@ fn ask_to_continue(connect_opts: &ConnectOpts) -> bool {
                 }
             }
             Err(e) => {
-                println!("{}", e);
+                println!("{e}");
                 return false;
             }
         }