fix(nix): update vendorHash and vendor dir for new deps

vendor/github.com/refraction-networking/utls/u_hpke.go

@@ -0,0 +1,35 @@
+package tls
+
+import (
+	"github.com/refraction-networking/utls/internal/hpke"
+)
+
+type HPKERawPublicKey = []byte
+type HPKE_KEM_ID = uint16  // RFC 9180
+type HPKE_KDF_ID = uint16  // RFC 9180
+type HPKE_AEAD_ID = uint16 // RFC 9180
+
+type HPKESymmetricCipherSuite struct {
+	KdfId  HPKE_KDF_ID
+	AeadId HPKE_AEAD_ID
+}
+
+const defaultHpkeKdf = hpke.KDF_HKDF_SHA256
+const defaultHpkeKem = hpke.DHKEM_X25519_HKDF_SHA256
+const defaultHpkeAead = hpke.AEAD_AES_128_GCM
+
+var dummyX25519PublicKey = []byte{
+	143, 38, 37, 36, 12, 6, 229, 30, 140, 27, 167, 73, 26, 100, 203, 107, 216,
+	81, 163, 222, 52, 211, 54, 210, 46, 37, 78, 216, 157, 97, 241, 244,
+}
+
+// cipherLen returns the length of a ciphertext corresponding to a message of
+// length mLen.
+func cipherLen(a uint16, mLen int) int {
+	switch a {
+	case hpke.AEAD_AES_128_GCM, hpke.AEAD_AES_256_GCM, hpke.AEAD_ChaCha20Poly1305:
+		return mLen + 16
+	default:
+		panic("hpke: invalid AEAD identifier")
+	}
+}