Check in old dev secret

src/integration/fixtures/preprod/old_dev.secret.keep

@@ -0,0 +1 @@
+79d88e2069d49dd24452b39cf17eb07581eb5350aa55e918cede5e4e7f171c70

src/integration/tests/preprod_sharding.rs

@@ -13,15 +13,14 @@ use qos_p256::{
 	derive_secret, encrypt::P256EncryptPair, P256Pair, P256_ENCRYPT_DERIVE_PATH,
 };
 
-// Note: the dev secret is NOT checked in QOS. It can be found in our keys repo
-// (tkhq/keys:deployment/preprod/evm-parser/manifest-set/dev.secret) This secret
-// is not security sensitive since it belongs to our dev/preprod environment but
-// I want to avoid duplicating it in case there's drift for whatever reason.
-// However I've choosen to commit the old encrypted shares and quorum public
-// keys because they're useful anchors for this tests. The quorum public keys
-// and old dev shares for each enclaves are committed in
+// Note: the dev secret can also be found in our keys repo
+// (tkhq/keys:deployment/preprod/evm-parser/manifest-set/dev.secret)
+// This secret is not security sensitive since it belongs to our dev/preprod
+// environment I've also chosen to commit the old encrypted shares and quorum
+// public keys because they're useful anchors for this tests. The quorum public
+// keys and old dev shares for each enclaves are committed in
 // ./fixtures/preprod/$ENCLAVE_NAME/
-const OLD_DEV_SECRET_PATH: &str = "./fixtures/preprod/old_dev.secret";
+const OLD_DEV_SECRET_PATH: &str = "./fixtures/preprod/old_dev.secret.keep";
 
 #[test]
 fn preprod_reshard_ceremony() {
@@ -79,7 +78,7 @@ fn preprod_reshard_ceremony() {
 	}
 
 	// Load previous dev secret (1/1 setting)
-	let dev_secret_utf8_bytes = fs::read(OLD_DEV_SECRET_PATH).expect("Cannot read old dev secret. Did you add it to at ./fixtures/preprod/old_dev.secret?");
+	let dev_secret_utf8_bytes = fs::read(OLD_DEV_SECRET_PATH).unwrap();
 	let dev_secret_hex_bytes =
 		qos_hex::decode(std::str::from_utf8(&dev_secret_utf8_bytes).unwrap())
 			.unwrap();