fix(checkver): skip default JSONPath for scripts

Author: massimomazzariol

CHANGELOG.md

@@ -11,6 +11,7 @@
 
 ### Bug Fixes
 
+- **checkver:** Skip default GitHub JSONPath when using custom script ([#6681](https://github.com/ScoopInstaller/Scoop/issues/6681))
 - **core:** Fix the grep parameter in the `Invoke-GitLog` function ([#6407](https://github.com/ScoopInstaller/Scoop/issues/6407))
 - **buckets:** Skip Git invocation if unavailable in `new_issue_msg` ([#6591](https://github.com/ScoopInstaller/Scoop/issues/6591))
 - **buckets:** Fix the filtering condition when retrieving the number of manifests ([#6509](https://github.com/ScoopInstaller/Scoop/issues/6509))

bin/checkver.ps1

@@ -179,7 +179,9 @@ $Queue | ForEach-Object {
 
         if ($url -like 'https://api.github.com*') {
             # Default jsonpath/regex in GitHub API mode
-            $jsonpath = '$.tag_name'
+            if (-not $json.checkver.script) {
+                $jsonpath = '$.tag_name'
+            }
             if (-not $regex) {
                 $regex = '(?:v|V)?([\d.-]+)'
             }