fix(serviceaccount create): allow absolute paths when passing custom file location

[craicoverflow]

Description

fixes #435

This PR does three things:

67a4f08 fixes an error where the user's custom credentials file path was assume to be a relative path and the CLI was converting it from an assumed relative path to an absolute path. The fix removes any modification to the custom path.

b055229 adds a missing --force flag to the serviceaccount reset-credentials command.

cc35b29 lets users pass an environment variable in their file path

Verification Steps

67a4f08

1. Create a service account with a custom absolute file location:

./rhoas serviceaccount create --name cli-e2e-service-account-auto-test --file-format json --file-location $HOME/file.json --overwrite

2. The credentials file will save successfully to /home/your-username/file.json

b055229

Run the reset service account command with the --force flag:

./rhoas serviceaccount reset-credentials --id $your-id --file-format json --file-location $HOME/file.json --overwrite --force

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist

• Documentation added for the feature
• CI and all relevant tests are passing
• Code Review completed
• Verified independently by reviewer