Pushing to Repos Now Failing

**Describe the bug**
I'm not sure what's changed, but I was hoping to figured out some information for how to troubleshoot this on my end further.

**To Reproduce**
Steps to reproduce the behavior:
1. Make commit using `gitui`
2. Push using `gitui`
3. See Error
4. Push using CLI `git` works

**Expected behavior**
I can push to my repos using `gitui`

**Screenshots**

**Context (please complete the following information):**
- OS/Distro + Version: `macOS 14.5`
- GitUI Version: `gitui nightly 2024-05-22 ()`
- Rust version: `rustc 1.78.0 (9b00956e5 2024-04-29) (Homebrew)`

**Additional context**
I believe it's possibly my keychain provider has changed somehow? Upon first push to a new remote (GitHub or ADO), I get a keychain access request. Upon providing the credential and "Always Allow," this happens without a keychain access prompt. If I just hit "Allow" the same error occurs but I need to input my computer password repeatedly.

Comienza reproduciendo el flujo de push en macOS 14.5 con la versión nightly de GitUI y las versiones de Rust indicadas, comparando los pushes de GitUI con el comando CLI git. Sigue el comportamiento de acceso al keychain descrito en el issue; se considera terminado cuando los pushes a GitHub o Azure DevOps funcionan sin solicitudes repetidas de contraseña ni errores.

Escrito por el modelo de indexación a partir del texto del issue.