3.0.19 (#384)

* fix(config.ts): move 'gpt-4o-mini' in MODEL_LIST
* docs(config.ts): update API key validation message with detailed instructions
* refactor(config.ts): simplify model validation logic to check for string type instead of MODEL_LIST

* 3.0.19

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "opencommit",
-  "version": "3.0.18",
+  "version": "3.0.19",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "opencommit",
-      "version": "3.0.18",
+      "version": "3.0.19",
       "license": "MIT",
       "dependencies": {
         "@actions/core": "^1.10.0",