fix(updater): Fix endpoint string replacements, fixes #655 (#662)

* fix(updater): Fix endpoint string replacements, fixes #655

* fmt

.changes/updater-string-replace.md

@@ -0,0 +1,5 @@
+---
+"updater": "patch"
+---
+
+The plugin now correctly replaces `arch`, `current_version` and `target` again.

plugins/updater/src/updater.rs

@@ -258,9 +258,13 @@ impl Updater {
             // the URL will be generated dynamically
             let url: Url = url
                 .to_string()
-                .replace("{{current_version}}", &self.current_version.to_string())
+                // url::Url automatically url-encodes the string
-                .replace("{{target}}", &self.target)
+                .replace(
-                .replace("{{arch}}", self.arch)
+                    "%7B%7Bcurrent_version%7D%7D",
+                    &self.current_version.to_string(),
+                )
+                .replace("%7B%7Btarget%7D%7D", &self.target)
+                .replace("%7B%7Barch%7D%7D", self.arch)
                 .parse()?;
 
             let mut request = Client::new().get(url).headers(headers.clone());