fix: packages/vscode/package.json to reduce vulnerabilities (#293)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-INFLIGHT-6095116

Co-authored-by: snyk-bot <[email protected]>

Author: patternfly-build

packages/vscode/package.json

@@ -64,7 +64,7 @@
     "@cloudmosaic/quickstarts": "^0.0.24",
     "@patternfly/patternfly": "^5.0.0",
     "@patternfly/react-catalog-view-extension": "^5.0.0",
-    "asciidoctor": "^2.2.6",
+    "asciidoctor": "^3.0.0",
     "i18next-parser": "^8.9.0",
     "js-base64": "^3.6.0",
     "js-yaml": "^4.0.0",