chore(rust): register advent_of_code_ci cfg in all packages

Author: markkovari

2015/Cargo.toml

@@ -17,3 +17,6 @@ rayon = "1.10"
 regex = "1.8.1"
 serde = "1.0.163"
 serde_json = "1.0.96"
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(advent_of_code_ci)'] }

2018/Cargo.toml

@@ -19,3 +19,6 @@ regex = "1.9.1"
 regex-syntax = { version = "0.7.5", features = ["arbitrary"] }
 serde_scan = "0.4.1"
 text_io = "0.1.12"
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(advent_of_code_ci)'] }

2022/Cargo.toml

@@ -17,4 +17,6 @@ ndarray = "0.15.6"
 sscanf = "0.4.0"
 smallvec = "1.10.0"
 static_init = "1.0.3"
-pretty_assertions = "1.3.0"
+pretty_assertions = "1.3.0"
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(advent_of_code_ci)'] }

runner/Cargo.toml

@@ -20,3 +20,6 @@ aoc_2022 = { path = "../2022" }
 aoc_2025 = { path = "../2025/rust" }
 clap = { version = "4.0", features = ["derive"] }
 anyhow = "1.0"
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(advent_of_code_ci)'] }