flake.lock: Update

Flake lock file updates:

• Added input 'hercules-ci-effects':
    'github:hercules-ci/hercules-ci-effects/1f904af1824e7393702daaf40a8fed56ebead0d7' (2022-05-24)
• Added input 'hercules-ci-effects/nixpkgs':
    'github:NixOS/nixpkgs/73ad5f9e147c0d2a2061f1d4bd91e05078dc0b58' (2022-03-14)

flake.lock

@@ -308,6 +308,24 @@
         "type": "github"
       }
     },
+    "hercules-ci-effects": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_4"
+      },
+      "locked": {
+        "lastModified": 1653415319,
+        "narHash": "sha256-h+YUX7ZYujf73KL1R07LsEnhV7uV8oxSKEhH4bDj0Jc=",
+        "owner": "hercules-ci",
+        "repo": "hercules-ci-effects",
+        "rev": "1f904af1824e7393702daaf40a8fed56ebead0d7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "hercules-ci-effects",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -424,7 +442,7 @@
     "nix": {
       "inputs": {
         "lowdown-src": "lowdown-src",
-        "nixpkgs": "nixpkgs_4"
+        "nixpkgs": "nixpkgs_5"
       },
       "locked": {
         "lastModified": 1606150835,
@@ -556,6 +574,22 @@
       }
     },
     "nixpkgs_4": {
+      "locked": {
+        "lastModified": 1647297614,
+        "narHash": "sha256-ulGq3W5XsrBMU/u5k9d4oPy65pQTkunR4HKKtTq0RwY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "73ad5f9e147c0d2a2061f1d4bd91e05078dc0b58",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_5": {
       "locked": {
         "lastModified": 1602702596,
         "narHash": "sha256-fqJ4UgOb4ZUnCDIapDb4gCrtAah5Rnr2/At3IzMitig=",
@@ -570,7 +604,7 @@
         "type": "indirect"
       }
     },
-    "nixpkgs_5": {
+    "nixpkgs_6": {
       "locked": {
         "lastModified": 1650998007,
         "narHash": "sha256-NcJnbGDBBN023x8s3ll3HZxBcQoPq1ry9E2sjg+4flc=",
@@ -671,11 +705,12 @@
         "devshell": "devshell",
         "dream2nix": "dream2nix",
         "hercules-ci-agent": "hercules-ci-agent",
+        "hercules-ci-effects": "hercules-ci-effects",
         "home-manager": "home-manager",
         "mms": "mms",
         "nar-serve": "nar-serve",
         "nix-super": "nix-super",
-        "nixpkgs": "nixpkgs_5"
+        "nixpkgs": "nixpkgs_6"
       }
     },
     "utils": {