Update dependency @microsoft/tsdoc to v0.15.0 (#880)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pnpm-lock.yaml

@@ -20,7 +20,7 @@
   "typings": "dist/rollup.d.ts",
   "dependencies": {
     "@microsoft/api-extractor-model": "^7.27.2",
-    "@microsoft/tsdoc": "0.14.2",
+    "@microsoft/tsdoc": "0.15.0",
     "@rushstack/heft-node-rig": "^2.2.6",
     "@rushstack/node-core-library": "^5.0.0",
     "@rushstack/ts-command-line": "^4.15.0",