cargo-*: add page; cargo-logout: update page (#11337)

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

pages/common/cargo-owner.md

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+# cargo owner
+
+> Manage the owners of a crate on the registry.
+> More information: <https://doc.rust-lang.org/cargo/commands/cargo-owner.html>.
+
+- Invite the given user or team as an owner:
+
+`cargo owner --add {{username|github:org_name:team_name}} {{crate}}`
+
+- Remove the given user or team as an owner:
+
+`cargo owner --remove {{username|github:org_name:team_name}} {{crate}}`
+
+- List owners of a crate:
+
+`cargo owner --list {{crate}}`
+
+- Specify the name of the registry to use (registry names can be defined in the config - the default is <https://crates.io>):
+
+`cargo owner --registry {{name}}`