Update terrain50 library

Changelog.md

@@ -16,6 +16,7 @@ npm install --save terrain50-cli
 
 ## Unreleased
  - `split`: Fix invalid gzip file generation
+ - Update terrain50
 
 
 ## v1.6

package-lock.json

@@ -338,9 +338,9 @@
 			}
 		},
 		"terrain50": {
-			"version": "1.8.2",
-			"resolved": "https://registry.npmjs.org/terrain50/-/terrain50-1.8.2.tgz",
-			"integrity": "sha512-2gdPikCZJFSKhbH/3B7uMQvvHB37GEjIaaqTIrdWZsxczd+l/CQtJviwyQ3nkWiQ5o7bs8fW0bVwKY7easjG5A==",
+			"version": "1.8.4",
+			"resolved": "https://registry.npmjs.org/terrain50/-/terrain50-1.8.4.tgz",
+			"integrity": "sha512-AM7BnE4NI77iYJeJYfklTGCA954OAXkYbwQ0o93pVQIsjWxojlqOIieqLwmLQxGJT5g32+Gjwwf0Q+F7gtpZUg==",
 			"requires": {
 				"nexline": "^1.2.1",
 				"nnng": "^1.0.0"

package.json

@@ -37,7 +37,7 @@
 		"chroma-js": "^2.1.0",
 		"image-encode": "^1.3.0",
 		"nexline": "^1.2.1",
-		"terrain50": "^1.8.2"
+		"terrain50": "^1.8.4"
 	},
 	"bin": {
 		"terrain50": "./src/index.mjs"