Update dependency @actions/exec to v3 (#1677)

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

Author: renovate[bot]

package-lock.json

@@ -31,7 +31,7 @@
     "@actions/artifact": "5.0.3",
     "@actions/cache": "5.0.5",
     "@actions/core": "2.0.3",
-    "@actions/exec": "2.0.0",
+    "@actions/exec": "3.0.0",
     "@actions/github": "8.0.1",
     "@actions/glob": "0.5.1",
     "@actions/http-client": "4.0.0",