refactor: use strum on EncryptionAlgorithm, use Xor as default when AesGcm not available (#1923)

Cargo.lock

@@ -2257,6 +2257,7 @@ dependencies = [
  "smoltcp",
  "snow",
  "socket2 0.5.10",
+ "strum 0.27.2",
  "stun_codec",
  "sys-locale",
  "tabled",
@@ -7644,7 +7645,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sqlx",
- "strum",
+ "strum 0.26.3",
  "thiserror 1.0.63",
  "time",
  "tracing",
@@ -8679,6 +8680,27 @@ version = "0.26.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8fec0f0aef304996cf250b31b5a10dee7980c85da9d759361292b8bca5a18f06"
 
+[[package]]
+name = "strum"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af23d6f6c1a224baef9d3f61e287d2761385a5b88fdab4eb4c6f11aeb54c4bcf"
+dependencies = [
+ "strum_macros",
+]
+
+[[package]]
+name = "strum_macros"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7695ce3845ea4b33927c055a39dc438a45b059f7c1b3d91d38d10355fb8cbca7"
+dependencies = [
+ "heck 0.5.0",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.87",
+]
+
 [[package]]
 name = "stun_codec"
 version = "0.3.5"