Fix regression in package.yml metadata.owner key

As far as I can tell, this key was not intentionally removed and
its presence is missed. Based on issues reported, We're restoring
support rather than fix all the other things that depend on it.

Fixes: #141

Author: martinemde

ext/code_ownership/Cargo.toml

@@ -10,21 +10,21 @@ crate-type = ["cdylib"]
 
 [dependencies]
 rb-sys = { version = "0.9.111", features = [
-    "bindgen-rbimpls",
-    "bindgen-deprecated-types",
-    "stable-api-compiled-fallback",
+  "bindgen-rbimpls",
+  "bindgen-deprecated-types",
+  "stable-api-compiled-fallback",
 ] }
 magnus = { version = "0.7.1" }
 serde = { version = "1.0.219", features = ["derive"] }
 serde_magnus = "0.9.0"
-codeowners = { git = "https://github.com/rubyatscale/codeowners-rs.git", tag = "v0.3.0" }
+codeowners = { git = "https://github.com/rubyatscale/codeowners-rs.git", tag = "v0.3.1" }
 
 [dev-dependencies]
 rb-sys = { version = "0.9.117", features = [
-    "link-ruby",
-    "bindgen-rbimpls",
-    "bindgen-deprecated-types",
-    "stable-api-compiled-fallback",
+  "link-ruby",
+  "bindgen-rbimpls",
+  "bindgen-deprecated-types",
+  "stable-api-compiled-fallback",
 ] }
 
 [build-dependencies]