Document await in exponential backoff run function

source/exponential-backoff.ts

@@ -90,6 +90,8 @@ export class ExponentialBackoff {
 
         while (attempt < this.options.maxAttempts || unlimitedAttempts) {
             try {
+                // Await the promise before returning so its execution context remains in the try-catch
+                // If we didn't await, this `run` function would successfully return and any errors would not be caught here.
                 return await taskFn();
             } catch (error) {
                 // Store the error in case we fail every attempt