Fix/mysql version default value (#6)

* fix: value

* fix: mysqlVersion default value

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Co-authored-by: raoha.rh <[email protected]>

Author: RaoHai

scripts/test/index.js

@@ -2,7 +2,8 @@ const core = require('@actions/core');
 
 const os = core.getInput('os').split(',').map(x => x.trim());
 const version = core.getInput('version').split(',').map(x => x.trim());
-const mysqlVersion = core.getInput('mysql_version').split(',').map(x => x.trim());
+const mysqlVersionInput = core.getInput('mysql_version') || '5';
+const mysqlVersion = mysqlVersionInput.split(',').map(x => x.trim());
 
 core.setOutput('os', JSON.stringify(os));
 core.setOutput('version', JSON.stringify(version));