Fix swagger doc by rename repoAddTopíc to repoAddTopic (#16580)

* Swagger API: rename repoAddTopíc to repoAddTopic

This changes the operationId to only contain 7 bit ascii, note "í" instead of "i"

routers/api/v1/repo/topic.go

@@ -126,7 +126,7 @@ func UpdateTopics(ctx *context.APIContext) {
 
 // AddTopic adds a topic name to a repo
 func AddTopic(ctx *context.APIContext) {
-	// swagger:operation PUT /repos/{owner}/{repo}/topics/{topic} repository repoAddTopíc
+	// swagger:operation PUT /repos/{owner}/{repo}/topics/{topic} repository repoAddTopic
 	// ---
 	// summary: Add a topic to a repository
 	// produces:

templates/swagger/v1_json.tmpl

@@ -9651,7 +9651,7 @@
           "repository"
         ],
         "summary": "Add a topic to a repository",
-        "operationId": "repoAddTopíc",
+        "operationId": "repoAddTopic",
         "parameters": [
           {
             "type": "string",