Updated (and fixed) npm & gulp deps

.npmrc

@@ -0,0 +1 @@
+engine-strict=true

package.json

@@ -1,7 +1,7 @@
 {
 	"name": "website_template",
 	"description": "npm & gulp development template",
-	"version": "3.0.4",
+	"version": "3.1.0",
 	"author": "Jan Jastrow",
 	"license": "MIT",
 	"homepage": "https://jan.jastrow.me",
@@ -16,20 +16,23 @@
 		"url": "https://gitea.schwerkraftlabor.de/jan/website_template"
 	},
 	"devDependencies": {
-		"autoprefixer": "^10.1.0",
-		"caniuse-lite": "^1.0.30001165",
-		"cssnano": "^4.1.10",
+		"autoprefixer": "^10.2.5",
+		"caniuse-lite": "^1.0.30001228",
+		"cssnano": "^5.0.2",
 		"gulp": "^4.0.2",
 		"gulp-concat": "^2.6.1",
 		"gulp-livereload": "^4.0.2",
-		"gulp-notify": "^3.2.0",
+		"gulp-notify": "^4.0.0",
 		"gulp-plumber": "^1.2.1",
 		"gulp-postcss": "^9.0.0",
 		"gulp-rename": "^2.0.0",
 		"gulp-sass": "^4.1.0",
 		"merge2": "^1.4.1",
+		"postcss": "^8.2.15",
 		"rimraf": "^3.0.2",
-		"sanitize.css": "^12.0.1"
+		"sanitize.css": "^12.0.1",
+		"node-sass": "^6.0.0",
+		"sass": "^1.32.13"
 	},
 	"browserslist": [
 		"last 2 version",