Update reduce-css-calc to version 2.1.8

Author: depfu[bot]

package.json

@@ -75,7 +75,7 @@
     "postcss-selector-parser": "^6.0.4",
     "postcss-value-parser": "^4.1.0",
     "pretty-hrtime": "^1.0.3",
-    "reduce-css-calc": "^2.1.6",
+    "reduce-css-calc": "^2.1.8",
     "resolve": "^1.19.0"
   },
   "browserslist": [

yarn.lock

@@ -4720,10 +4720,10 @@ readdirp@~3.5.0:
   dependencies:
     picomatch "^2.2.1"
 
-reduce-css-calc@^2.1.6:
-  version "2.1.7"
-  resolved "https://registry.yarnpkg.com/reduce-css-calc/-/reduce-css-calc-2.1.7.tgz#1ace2e02c286d78abcd01fd92bfe8097ab0602c2"
-  integrity sha512-fDnlZ+AybAS3C7Q9xDq5y8A2z+lT63zLbynew/lur/IR24OQF5x98tfNwf79mzEdfywZ0a2wpM860FhFfMxZlA==
+reduce-css-calc@^2.1.8:
+  version "2.1.8"
+  resolved "https://registry.yarnpkg.com/reduce-css-calc/-/reduce-css-calc-2.1.8.tgz#7ef8761a28d614980dc0c982f772c93f7a99de03"
+  integrity sha512-8liAVezDmUcH+tdzoEGrhfbGcP7nOV4NkGE3a74+qqvE7nt9i4sKLGBuZNOnpI4WiGksiNPklZxva80061QiPg==
   dependencies:
     css-unit-converter "^1.1.1"
     postcss-value-parser "^3.3.0"