v0.3.21

What's Changed

• Remove is-expression from schema and implement convertToIfCondition by @ericsciple in #217
• Refactor if-condition to use schema-driven validation and AST-based status function detection by @ericsciple in #218
• Add validation for literal text in if conditions by @ericsciple in #216
• Add uses syntax validation for step and job-level workflows by @ericsciple in #220
• Fix misleading error for malformed local workflow paths by @ericsciple in #221
• Fix npm audit vulnerabilities by @ericsciple in #222
• Improve cron schedule validation and diagnostics by @ericsciple in #224
• Release version 0.3.21 by @github-actions[bot] in #226

Full Changelog: release-v0.3.20...release-v0.3.21