feat: update math scaffold databases

PR-URL: #8740
Reviewed-by: Athan Reines <[email protected]>

Author: stdlib-bot

lib/node_modules/@stdlib/math/special/data/unary.json

@@ -7134,7 +7134,141 @@
     ]
   },
   "@stdlib/math/base/special/cphasef": {},
-  "@stdlib/math/base/special/cphase": {},
+  "@stdlib/math/base/special/cphase": {
+    "$schema": "math/[email protected]",
+    "base_alias": "cphase",
+    "alias": "cphase",
+    "pkg_desc": "compute the argument of a double-precision complex floating-point number in radians",
+    "desc": "computes the argument of a double-precision complex floating-point number in radians",
+    "short_desc": "argument of a complex number",
+    "parameters": [
+      {
+        "name": "z",
+        "desc": "input value",
+        "type": {
+          "javascript": "Complex128",
+          "jsdoc": "Complex128",
+          "c": "stdlib_complex128_t",
+          "dtype": "complex128"
+        },
+        "domain": null,
+        "rand": {
+          "prng": "random/base/uniform",
+          "parameters": [
+            [
+              -10,
+              10
+            ],
+            [
+              -10,
+              10
+            ]
+          ]
+        },
+        "example_values": [
+          {
+            "re": 5,
+            "im": 3
+          },
+          {
+            "re": -5,
+            "im": 3
+          },
+          {
+            "re": 5,
+            "im": -3
+          },
+          {
+            "re": -5,
+            "im": -3
+          },
+          {
+            "re": 1,
+            "im": 1
+          },
+          {
+            "re": -1,
+            "im": 1
+          },
+          {
+            "re": 1,
+            "im": -1
+          },
+          {
+            "re": -1,
+            "im": -1
+          },
+          {
+            "re": 3,
+            "im": 4
+          },
+          {
+            "re": -3,
+            "im": 4
+          },
+          {
+            "re": 0,
+            "im": 1
+          },
+          {
+            "re": 0,
+            "im": -1
+          },
+          {
+            "re": 1,
+            "im": 0
+          },
+          {
+            "re": -1,
+            "im": 0
+          },
+          {
+            "re": 2,
+            "im": 2
+          },
+          {
+            "re": -2,
+            "im": 2
+          },
+          {
+            "re": 4,
+            "im": 3
+          },
+          {
+            "re": 6,
+            "im": 8
+          },
+          {
+            "re": 7,
+            "im": 24
+          },
+          {
+            "re": 0.5,
+            "im": 0.5
+          }
+        ]
+      }
+    ],
+    "returns": {
+      "desc": "argument in radians",
+      "type": {
+        "javascript": "number",
+        "jsdoc": "number",
+        "c": "double",
+        "dtype": "float64"
+      }
+    },
+    "keywords": [
+      "cphase",
+      "phase",
+      "argument",
+      "arg",
+      "angle",
+      "complex",
+      "cmplx"
+    ],
+    "extra_keywords": []
+  },
   "@stdlib/math/base/special/cscf": {
     "$schema": "math/[email protected]",
     "base_alias": "csc",