Another round of db.DefaultContext refactor (#27103) (#27262)

Backport #27103 by @JakobDev

Part of #27065

Co-authored-by: JakobDev <jakobdev@gmx.de>
Co-authored-by: KN4CK3R <admin@oldschoolhack.me>

models/issues/issue_test.go

@@ -369,7 +369,7 @@ func TestCorrectIssueStats(t *testing.T) {
 
 	// Now we will call the GetIssueStats with these IDs and if working,
 	// get the correct stats back.
-	issueStats, err := issues_model.GetIssueStats(&issues_model.IssuesOptions{
+	issueStats, err := issues_model.GetIssueStats(db.DefaultContext, &issues_model.IssuesOptions{
 		RepoIDs:  []int64{1},
 		IssueIDs: ids,
 	})