Revert "Drop pipenv support"

This reverts commit 4f2a04128f.

Pipfile

@@ -0,0 +1,12 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+cue-to-meta = {extras = ["test"], file = ".", editable = true}
+
+[dev-packages]
+
+[requires]
+python_version = "3.11"

Pipfile.lock

@@ -0,0 +1,67 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "04c838fe697665c7d6d7cf20a8c325a42aaaf21766c04868eb868ba476f8cd40"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "3.11"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "click": {
+            "hashes": [
+                "sha256:ae74fb96c20a0277a1d615f1e4d73c8414f5a98db8b799a7931d1582f3390c28",
+                "sha256:ca9853ad459e787e2192211578cc907e7594e294c7ccc834310722b41b9ca6de"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==8.1.7"
+        },
+        "cue-to-meta": {
+            "editable": true,
+            "extras": [
+                "test"
+            ],
+            "file": "."
+        },
+        "iniconfig": {
+            "hashes": [
+                "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3",
+                "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==2.0.0"
+        },
+        "packaging": {
+            "hashes": [
+                "sha256:026ed72c8ed3fcce5bf8950572258698927fd1dbda10a5e981cdf0ac37f4f002",
+                "sha256:5b8f2217dbdbd2f7f384c41c628544e6d52f2d0f53c6d0c3ea61aa5d1d7ff124"
+            ],
+            "markers": "python_version >= '3.8'",
+            "version": "==24.1"
+        },
+        "pluggy": {
+            "hashes": [
+                "sha256:2cffa88e94fdc978c4c574f15f9e59b7f4201d439195c3715ca9e2486f1d0cf1",
+                "sha256:44e1ad92c8ca002de6377e165f3e0f1be63266ab4d554740532335b9d75ea669"
+            ],
+            "markers": "python_version >= '3.8'",
+            "version": "==1.5.0"
+        },
+        "pytest": {
+            "hashes": [
+                "sha256:c434598117762e2bd304e526244f67bf66bbd7b5d6cf22138be51ff661980343",
+                "sha256:de4bb8104e201939ccdc688b27a89a7be2079b22e2bd2b07f806b6ba71117977"
+            ],
+            "version": "==8.2.2"
+        }
+    },
+    "develop": {}
+}