build: bump all dependencies and set MSRV to 1.94; fix build failures

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I7d331410864358d30191781d1e6c23f46a6a6964

src/fetch.rs

@@ -409,7 +409,7 @@ impl Fetcher {
     for attempt in 0..max_attempts {
       match self.download_single_attempt(url, target_path).await {
         Ok(()) => return Ok(()),
-        Err(e) if attempt < self.retry_count => {
+        Err(_e) if attempt < self.retry_count => {
           log::warn!(
             "Download attempt {}/{} failed for {}, retrying...",
             attempt + 1,