Improve error handling in account read and delete functions

This commit eliminates a redundant variable declaration from the
resourceCloudflareAccountRead function and surfaces some additional
information (the account ID) on account deletion failure cases.

Closes #2437

```release-note:enhancement
resource/cloudflare_account: Improve error handling of resourceCloudflareAccountDelete
```

.changelog/2436.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/cloudflare_account: Improve error handling of resourceCloudflareAccountDelete
+```

internal/sdkv2provider/resource_cloudflare_account.go

@@ -66,8 +66,7 @@ func resourceCloudflareAccountRead(ctx context.Context, d *schema.ResourceData,
 
 	foundAcc, _, err := client.Account(ctx, accountID)
 	if err != nil {
-		var notFoundError *cloudflare.NotFoundError
-		if errors.As(err, &notFoundError) {
+		if errors.As(err, &cloudflare.NotFoundError{}) {
 			tflog.Info(ctx, fmt.Sprintf("Account %s no longer exists", d.Id()))
 			d.SetId("")
 			return nil
@@ -118,7 +117,7 @@ func resourceCloudflareAccountDelete(ctx context.Context, d *schema.ResourceData
 	err := client.DeleteAccount(ctx, accountID)
 
 	if err != nil {
-		return diag.FromErr(fmt.Errorf("error deleting Cloudflare Account: %w", err))
+		return diag.FromErr(fmt.Errorf("error deleting Cloudflare Account %q: %w", accountID, err))
 	}
 
 	return nil