init attest action

package.json

@@ -25,6 +25,7 @@
   },
   "scripts": {
     "bundle": "npm run format:write && npm run package",
+    "prepackage": "npm run build --workspace packages/attest",
     "ci-test": "jest",
     "coverage": "make-coverage-badge --output-path ./badges/coverage.svg",
     "format:write": "prettier --write **/*.ts",
@@ -66,24 +67,30 @@
     ]
   },
   "dependencies": {
-    "@actions/core": "^1.10.1"
+    "@actions/core": "^1.10.1",
+    "@actions/glob": "^0.4.0",
+    "@sigstore/oci": "^0.1.0"
   },
   "devDependencies": {
     "@types/jest": "^29.5.12",
-    "@types/node": "^20.11.19",
-    "@typescript-eslint/eslint-plugin": "^6.21.0",
+    "@types/node": "^20.11.17",
     "@typescript-eslint/parser": "^6.21.0",
+    "@types/make-fetch-happen": "^10.0.4",
     "@vercel/ncc": "^0.38.1",
     "eslint": "^8.56.0",
     "eslint-plugin-github": "^4.10.1",
-    "eslint-plugin-jest": "^27.9.0",
+    "eslint-plugin-jest": "^27.8.0",
     "eslint-plugin-jsonc": "^2.13.0",
     "eslint-plugin-prettier": "^5.1.3",
     "jest": "^29.7.0",
+    "js-yaml": "^4.1.0",
     "make-coverage-badge": "^1.2.0",
     "prettier": "^3.2.5",
     "prettier-eslint": "^16.3.0",
     "ts-jest": "^29.1.2",
     "typescript": "^5.3.3"
-  }
+  },
+  "workspaces": [
+    "./packages/*"
+  ]
 }