Merge pull request #1132 from cobalt-org/renovate/open-4.x

chore(deps): update rust crate open to v4

Author: epage

Cargo.lock

@@ -94,7 +94,7 @@ serde_json = "1.0"
 toml = "0.7.3"
 normalize-line-endings = "0.3.0"
 sitemap = "0.4"
-open = "3"
+open = "4"
 dunce = "1.0.4"
 vimwiki = { version = "0.1", features = ["html"] }