ci: avoid repeated runs of stylelint (cotes2020#2057)

Author: cotes2020

.github/workflows/style-lint.yml

@@ -0,0 +1,30 @@
+{
+  "extends": "stylelint-config-standard-scss",
+  "rules": {
+    "no-descending-specificity": null,
+    "shorthand-property-no-redundant-values": null,
+    "at-rule-no-vendor-prefix": null,
+    "property-no-vendor-prefix": null,
+    "selector-no-vendor-prefix": null,
+    "value-no-vendor-prefix": null,
+    "color-function-notation": "legacy",
+    "alpha-value-notation": "number",
+    "selector-not-notation": "simple",
+    "color-hex-length": "long",
+    "declaration-block-single-line-max-declarations": 3,
+    "scss/operator-no-newline-after": null,
+    "rule-empty-line-before": [
+      "always",
+      {
+        "ignore": ["after-comment", "first-nested"]
+      }
+    ],
+    "value-keyword-case": [
+      "lower",
+      {
+        "ignoreProperties": ["/^\\$/"]
+      }
+    ],
+    "media-feature-range-notation": "prefix"
+  }
+}

.stylelintrc.json

@@ -68,41 +68,6 @@
       ]
     }
   },
-  "stylelint": {
-    "extends": "stylelint-config-standard-scss",
-    "rules": {
-      "no-descending-specificity": null,
-      "shorthand-property-no-redundant-values": null,
-      "at-rule-no-vendor-prefix": null,
-      "property-no-vendor-prefix": null,
-      "selector-no-vendor-prefix": null,
-      "value-no-vendor-prefix": null,
-      "color-function-notation": "legacy",
-      "alpha-value-notation": "number",
-      "selector-not-notation": "simple",
-      "color-hex-length": "long",
-      "declaration-block-single-line-max-declarations": 3,
-      "scss/operator-no-newline-after": null,
-      "rule-empty-line-before": [
-        "always",
-        {
-          "ignore": [
-            "after-comment",
-            "first-nested"
-          ]
-        }
-      ],
-      "value-keyword-case": [
-        "lower",
-        {
-          "ignoreProperties": [
-            "/^\\$/"
-          ]
-        }
-      ],
-      "media-feature-range-notation": "prefix"
-    }
-  },
   "release": {
     "branches": [
       "production"