docs: fix outdated example of specifying a custom unix socket

Cargo.lock

@@ -376,7 +376,7 @@ dependencies = [
 
 [[package]]
 name = "cup"
-version = "3.4.2"
+version = "3.4.1"
 dependencies = [
  "bollard",
  "chrono",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cup"
-version = "3.4.2"
+version = "3.4.1"
 edition = "2021"
 
 [dependencies]

docs/src/content/docs/configuration/index.mdx

@@ -20,7 +20,7 @@ Sometimes, there may be a need to specify a custom docker socket. Cup provides t
 For example, if using Podman, you might do
 
 ```bash
-$ cup -s /run/user/1000/podman/podman.sock check
+$ cup -s unix:///run/user/1000/podman/podman.sock check
 ```
 
 This option is also available in the configuration file and it's best to put it there.

docs/src/content/docs/configuration/socket.mdx

@@ -4,7 +4,7 @@ If you need to specify a custom Docker socket (e.g. because you're using Podman)
 
 ```jsonc
 {
-  "socket": "/run/user/1000/podman/podman.sock"
+  "socket": "unix:///run/user/1000/podman/podman.sock"
   // Other options
 }
 ```
@@ -16,4 +16,4 @@ You can also specify a TCP socket if you're using a remote Docker host or a [pro
   "socket": "tcp://localhost:2375"
   // Other options
 }
-```
+```

src/registry.rs

@@ -58,7 +58,7 @@ pub async fn get_latest_digest(
         protocol, &image.parts.registry, &image.parts.repository, &image.parts.tag
     );
     let authorization = to_bearer_string(&token);
-    let headers = [("Accept", Some("application/vnd.docker.distribution.manifest.list.v2+json, application/vnd.docker.distribution.manifest.v2+json, application/vnd.oci.image.index.v1+json, application/vnd.oci.image.manifest.v1+json")), ("Authorization", authorization.as_deref())];
+    let headers = [("Accept", Some("application/vnd.docker.distribution.manifest.list.v2+json, application/vnd.docker.distribution.manifest.v2+json, application/vnd.oci.image.index.v1+json")), ("Authorization", authorization.as_deref())];
 
     let response = client.head(&url, &headers).await;
     let time = start.elapsed().unwrap().as_millis() as u32;