Prevent config-file default repeating in help (#2083)

## Description

Previously the help output looked like:

```
--config-file string   config file location (default is $HOME/.corso.toml) (default "$HOME/.corso.toml")
```

## Does this PR need a docs update or release note?

- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No 

## Type of change

<!--- Please check the type of change your PR introduces: --->
- [ ] 🌻 Feature
- [ ] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Test
- [ ] 💻 CI/Deployment
- [x] 🧹 Tech Debt/Cleanup

## Issue(s)

<!-- Can reference multiple issues. Use one of the following "magic words" - "closes, fixes" to auto-close the Github issue. -->
* #<issue>

## Test Plan

<!-- How will this be tested prior to merging.-->
- [x] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E

src/cli/config/config.go

@@ -68,7 +68,7 @@ func AddConfigFlags(cmd *cobra.Command) {
 		&configFilePathFlag,
 		"config-file",
 		displayDefaultFP,
-		"config file location (default is $HOME/.corso.toml)")
+		"config file location")
 }
 
 // ---------------------------------------------------------------------------------------------------------