fix: add tedge-write to tedge's sudoers rule

[reubenmiller]

Add the tedge-write utility to the sudoers.d/tedge definition to allow the tedge-configuration-plugin to set the file ownership and permissions when writing a file to the container.

A system test was also added to cover this use-case in the future.

[github-actions]

Robot Results

✅ Passed	❌ Failed	⏭️ Skipped	Total	Pass %	⏱️ Duration
20	0	1	20	100	8m28.924733s

Passed Tests

Name	⏱️ Duration	Suite
Ignore Containers Marked With A Specific Label	28.325 s	Container
Grace period to allow container to startup	5.028 s	Operations
Service is up	0.190 s	Operations
Get Logfile Request	4.692 s	Operations
Get Configuration File	5.039 s	Operations
Set Configuration File	2.696 s	Operations
Execute Shell Command	2.528 s	Operations
Install application using docker compose	18.178 s	Operations
Get Container Logs	4.691 s	Operations
Get Container Logs without explicit container name	4.698 s	Operations
Get Container Logs For Non-existent container	2.528 s	Operations
Update From Legacy Versions	139.408 s	Self-Update-Compat
Trigger self update via local command	25.417 s	Self-Update
Self update should only update if there is a new image	20.948 s	Self-Update
Self update using software update operation	103.890 s	Self-Update
Rollback when trying to install a non-tedge based image	23.769 s	Self-Update
Self update using software update operation using Container type	113.553 s	Self-Update
Cloud Connection is Online	0.211 s	Telemetry
Service status	0.378 s	Telemetry
Sends measurements	2.732 s	Telemetry