fix: upgrade sigstore from 1.5.2 to 1.9.0

Snyk has created this PR to upgrade sigstore from 1.5.2 to 1.9.0.

See this package in npm:
https://www.npmjs.com/package/sigstore

See this project in Snyk:
https://app.snyk.io/org/sammyfilly/project/369a5754-239e-4cb2-bb59-1d64d9535232?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

actions/delegator/setup-generic/package.json

@@ -22,7 +22,7 @@
   "dependencies": {
     "@actions/core": "^1.10.0",
     "@actions/github": "^5.1.1",
-    "sigstore": "^1.1.1",
+    "sigstore": "^1.9.0",
     "tscommon": "file:../../../.github/actions/tscommon/tscommon-0.0.0.tgz"
   },
   "devDependencies": {