Update dependency eslint-config-prettier to v9.1.0

| datasource | package                | from  | to    |
| ---------- | ---------------------- | ----- | ----- |
| npm        | eslint-config-prettier | 9.0.0 | 9.1.0 |

Author: renovate[bot]

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "mtslack",
-  "version": "31.0.1",
+  "version": "31.0.2",
   "description": "Material themes (and others) for Slack!",
   "main": "main.js",
   "type": "module",
@@ -77,7 +77,7 @@
     "css-what": "6.1.0",
     "eslint": "8.48.0",
     "eslint-config-oclif": "4.0.0",
-    "eslint-config-prettier": "9.0.0",
+    "eslint-config-prettier": "9.1.0",
     "eslint-plugin-import": "2.28.1",
     "eslint-plugin-node": "11.1.0",
     "eslint-plugin-prettier": "5.0.1",