chore: update flake

hosts/envoy/a.patch

@@ -1,27 +0,0 @@
-diff --git a/crates/jmap/src/api/management/domain.rs b/crates/jmap/src/api/management/domain.rs
-index e3890df5..7083aaf6 100644
---- a/crates/jmap/src/api/management/domain.rs
-+++ b/crates/jmap/src/api/management/domain.rs
-@@ -123,6 +123,8 @@ impl JMAP {
-     }
- 
-     async fn build_dns_records(&self, domain_name: &str) -> trc::Result<Vec<DnsRecord>> {
-+        let signature_config = self.core.storage.config.build_config("signature").await?;
-+
-         // Obtain server name
-         let server_name = self
-             .core
-@@ -143,7 +145,11 @@ impl JMAP {
-                 }
-                 _ => (),
-             }
--            keys.insert(key, value);
-+            let val = signature_config.keys
-+                .get(&format!("signature.{key}"))
-+                .cloned()
-+                .unwrap_or(value.clone());
-+            keys.insert(key, val);
-         }
- 
-         // Add MX and CNAME records
-

hosts/envoy/idmail.nix

@@ -1,4 +1,5 @@
 {
+  inputs,
   config,
   globals,
   lib,
@@ -43,6 +44,7 @@ in {
   };
 
   services.idmail = {
+    package = inputs.idmail.packages."x86_64-linux".default;
     enable = true;
     # Stalwart will change permissions due to SQLite implementation.
     # Therefore, run as stalwart-mail since we don't allow reading

hosts/envoy/stalwart-mail.nix

@@ -51,14 +51,6 @@ in {
 
   services.stalwart-mail = {
     enable = true;
-    package = pkgs.stalwart-mail.overrideAttrs (old: {
-      patches =
-        old.patches
-        ++ [
-          ./a.patch
-        ];
-      doCheck = false;
-    });
     settings = let
       case = field: check: value: data: {
         "if" = field;