pin tangled flake to branch

flake.lock

···
         "sqlite-lib-src": "sqlite-lib-src"
       },
       "locked": {
-        "lastModified": 1751967742,
-        "narHash": "sha256-nkZ1Ny6BaW/KD4BWtWm2kJ5+92kNSWcj4iyqyIBq7yw=",
-        "ref": "refs/heads/master",
-        "rev": "643a3ac18326821472691488635cc66f4ffdbf2b",
-        "revCount": 884,
+        "lastModified": 1751974352,
+        "narHash": "sha256-VUvvyMpgpWNuL+TezoT9knv6sO5B5yzJSdMHZ3BNlKE=",
+        "ref": "push-ksrsmmytwuul",
+        "rev": "f278504076c0178397ac733eeeb095ba7ad76550",
+        "revCount": 887,
         "type": "git",
         "url": "https://tangled.sh/@tangled.sh/core"
       },
       "original": {
+        "ref": "push-ksrsmmytwuul",
         "type": "git",
         "url": "https://tangled.sh/@tangled.sh/core"
       }

flake.nix

···
   description = "nix infra for tangled";
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
-    tangled.url = "git+https://tangled.sh/@tangled.sh/core";
+    tangled.url = "git+https://tangled.sh/@tangled.sh/core?ref=push-ksrsmmytwuul";
     colmena.url = "github:zhaofengli/colmena/release-0.4.x";
     disko = {
       url = "github:nix-community/disko";