chore: update documentation URLs to use workspace setting

Replace all docs.rs documentation URLs with documentation.workspace = true
to inherit from the workspace's docs.pezkuwichain.io URL.

templates/teyrchain/node/Cargo.toml

@@ -9,7 +9,7 @@ repository.workspace = true
 edition.workspace = true
 publish = false
 build = "build.rs"
-documentation = "https://docs.rs/teyrchain-template-node"
+documentation.workspace = true
 
 [lints]
 workspace = true