fix: use git dependency for a3s-acl instead of path dependency

The path dependency ../../acl only works in the monorepo context.
CI runs on the Code repo directly without the monorepo structure,
so the path dependency cannot be resolved. Change to git dependency
with tag v0.2.0.

Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

core/Cargo.toml

@@ -37,7 +37,7 @@ toml = "0.8"
 hcl-rs = "0.18"
 
 # ACL config parsing
-a3s-acl = { path = "../../acl" }
+a3s-acl = { git = "https://github.com/A3S-Lab/ACL.git", tag = "v0.2.0" }
 
 # Error handling
 anyhow = "1.0"