chore: add repository and homepage metadata to redisctl-core (#685)

Inherit workspace repository and homepage fields to suppress
crates.io publish warning about missing package metadata.

Author: joshrotenberg

crates/redisctl-core/Cargo.toml

@@ -4,6 +4,8 @@ version = "0.1.0"
 edition.workspace = true
 authors.workspace = true
 license.workspace = true
+repository.workspace = true
+homepage.workspace = true
 description = "Core library for Redis CLI tools - config, workflows, and shared logic"
 
 [dependencies]