Revert "bump nix flake"

This reverts commit 68f2c637da.

flake.lock

@@ -51,11 +51,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1709400089,
-        "narHash": "sha256-4A6X9xNWJ0EQhBPjM4JTdxQFDTkSqQchkNfuDWOP068=",
+        "lastModified": 1707685877,
+        "narHash": "sha256-XoXRS+5whotelr1rHiZle5t5hDg9kpguS5yk8c8qzOc=",
         "owner": "ipetkov",
         "repo": "crane",
-        "rev": "766e70fd475cd4d73bd65613d06bbb3dcbb75871",
+        "rev": "2c653e4478476a52c6aa3ac0495e4dea7449ea0e",
         "type": "github"
       },
       "original": {
@@ -73,11 +73,11 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1709360582,
-        "narHash": "sha256-fdHoIO3N/NsvyJtRMYDgydduezk0aGBT1/cQSHxy69E=",
+        "lastModified": 1707891749,
+        "narHash": "sha256-SeikNYElHgv8uVMbiA9/pU3Cce7ssIsiM8CnEiwd1Nc=",
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "f70eee0e38bc2287687c853df9b4ed6f6a028eb0",
+        "rev": "3115aab064ef38cccd792c45429af8df43d6d277",
         "type": "github"
       },
       "original": {
@@ -138,11 +138,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1709126324,
-        "narHash": "sha256-q6EQdSeUZOG26WelxqkmR7kArjgWCdw5sfJVHPH/7j8=",
+        "lastModified": 1705309234,
+        "narHash": "sha256-uNRRNRKmJyCRC/8y1RqBkqWBLM034y4qN7EprSdmgyA=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "d465f4819400de7c8d874d50b982301f28a84605",
+        "rev": "1ef2e671c3b0c19053962c07dbda38332dcebf26",
         "type": "github"
       },
       "original": {
@@ -200,11 +200,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1709237383,
-        "narHash": "sha256-cy6ArO4k5qTx+l5o+0mL9f5fa86tYUX3ozE1S+Txlds=",
+        "lastModified": 1707689078,
+        "narHash": "sha256-UUGmRa84ZJHpGZ1WZEBEUOzaPOWG8LZ0yPg1pdDF/yM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1536926ef5621b09bba54035ae2bb6d806d72ac8",
+        "rev": "f9d39fb9aff0efee4a3d5f4a6d7c17701d38a1d8",
         "type": "github"
       },
       "original": {
@@ -228,11 +228,11 @@
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1709318088,
-        "narHash": "sha256-guGsgYj2p2Bzj7GrqdYm5XMrVYVtJ8SUfZZF5OSpXZ0=",
+        "lastModified": 1707849817,
+        "narHash": "sha256-If6T0MDErp3/z7DBlpG4bV46IPP+7BWSlgTI88cmbw0=",
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "79e0fee6a30a5f563e9b709cc5959694709e19c4",
+        "rev": "a02a219773629686bd8ff123ca1aa995fa50d976",
         "type": "github"
       },
       "original": {