build(deps-dev): bump stylelint from 15.6.0 to 15.7.0 (#826)

* build(deps-dev): bump stylelint from 15.6.0 to 15.7.0

Bumps [stylelint](https://github.com/stylelint/stylelint) from 15.6.0 to 15.7.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@15.6.0...15.7.0)

---
updated-dependencies:
- dependency-name: stylelint
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* function-no-unknown: ignore empty function name

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Krister Kari <krister@sent.at>

package.json

@@ -28,7 +28,7 @@
     "postcss-less": "^6.0.0",
     "postcss-scss": "^4.0.6",
     "prettier": "^2.8.8",
-    "stylelint": "^15.6.0"
+    "stylelint": "^15.7.0"
   },
   "files": [
     "src/**/*.js",

src/rules/function-no-unknown/__tests__/index.js

@@ -111,7 +111,7 @@ testRule({
       code: "a { color: color.unknown(#6b717f, $red: 15); }",
       message: messages.rejected("color.unknown"),
       line: 1,
-      column: 12
+      column: 18
     },
     {
       code: `
@@ -123,7 +123,7 @@ testRule({
       `,
       message: messages.rejected("othermodule.myfunction"),
       line: 5,
-      column: 19,
+      column: 31,
       description: "non-matching @use namespace"
     },
     {
@@ -136,7 +136,7 @@ testRule({
       `,
       message: messages.rejected("c.myfunction"),
       line: 5,
-      column: 19,
+      column: 21,
       description: "non-matching @use namespace, 'as' keyword"
     },
     {

src/rules/function-no-unknown/index.js

@@ -91,7 +91,7 @@ function rule(primaryOption, secondaryOptions) {
         valueParser(node.value).walk(valueNode => {
           const { type, value: funcName } = valueNode;
 
-          if (type !== "function") {
+          if (type !== "function" || funcName.trim() === "") {
             return;
           }