fix(deps): update sha2 0.10→0.11, hmac 0.12→0.13 (#75)

Breaking API changes in digest crate ecosystem:
- sha2 digest returns Array instead of GenericArray
- Replace format!("{:x}", digest) with hex::encode(digest)
- Add digest::KeyInit trait import for Hmac
- Update all hash formatting in docker, npm, s3, tokens

Cargo.toml

@@ -21,7 +21,7 @@ serde_json = "1"
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter", "json"] }
 reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }
-sha2 = "0.10"
+sha2 = "0.11"
 async-trait = "0.1"
-hmac = "0.12"
+hmac = "0.13"
 hex = "0.4"