Add PATCH support in Gitea client and update issue handling

Extend Gitea client with a `patch` method for executing PATCH requests. Introduce `IssueWriteSetBody` struct for serializing issue update payloads. Update Gitea action to append related issues and send PATCH requests to update issue descriptions.

src/gitea/action.rs

@@ -2,12 +2,12 @@ use crate::cli::Issue2Work;
 use crate::config::Config;
 use crate::error::GeneralError;
 use crate::gitea::client::has_client_for_url;
-use crate::gitea::issue::{issue_html_url_to_api, Issue};
+use crate::gitea::issue::{issue_html_url_to_api, Issue, IssueWriteSetBody};
 use crate::openproject::user::{GetMe, User};
 use crate::openproject::work::WorkPackageWriter;
+use crate::planning::utils::{append_related_issues, IssueRelated};
 use crate::planning::Issue2WorkActionTrait;
 use url::Url;
-use crate::planning::utils::{append_related_issues, IssueRelated};
 
 pub(crate) struct GiteaAction {}
 
@@ -33,20 +33,28 @@ impl Issue2WorkActionTrait for GiteaAction {
             .create_work_package(&work_package, &args.project_id)
             .await?;
 
-        let url = format!(
+        let url_wp = format!(
             "{}/projects/{}/work_packages/{}",
             config.openproject.base_url, args.project_id, work_package.id
         );
 
-        let content = append_related_issues(&IssueRelated::OpenProjectIssue(url.to_string()), &issue.body);
-
+        let content = append_related_issues(
+            &IssueRelated::OpenProjectIssue(url_wp.to_string()),
+            &issue.body,
+        );
+        let _u: Issue = gitea_client
+            .patch(
+                issue_html_url_to_api(url)?,
+                &IssueWriteSetBody { body: content },
+            )
+            .await?;
 
         println!(
             "new work package created: {:?}, edit at {}",
-            work_package.subject, url
+            work_package.subject, url_wp
         );
 
-        if let Err(e) = open::that(url) {
+        if let Err(e) = open::that(url_wp) {
             println!("failed to open work package in browser: {}", e);
         };