try fixing compilation on docs.rs and crates.io

crates/pacdef_core/Cargo.toml

@@ -9,8 +9,11 @@ readme = "README.md"
 keywords = ["package-manager", "linux", "declarative", "cli"]
 categories = ["command-line-utilities"]
 
+[package.metadata.docs.rs]
+features = ["alpm/docs-rs"]
+
 [dependencies]
-alpm = { version = "2.2", default-features = false, features = ["docs-rs"] }
+alpm = "2.2"
 anyhow = { workspace = true }
 clap = "4.1"
 const_format = { version = "0.2", default-features = false }
@@ -24,4 +27,3 @@ serde_derive = "1.0"
 serde = "1.0"
 
 pacdef_macros = { path = "../pacdef_macros", version = "0.1" }
-