chore: Bump @aws-sdk/client-ssm in /modules/webhook/lambdas/webhook (#1394)

Bumps [@aws-sdk/client-ssm](https://github.com/aws/aws-sdk-js-v3/tree/HEAD/clients/client-ssm) from 3.39.0 to 3.40.0.
- [Release notes](https://github.com/aws/aws-sdk-js-v3/releases)
- [Changelog](https://github.com/aws/aws-sdk-js-v3/blob/main/clients/client-ssm/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js-v3/commits/v3.40.0/clients/client-ssm)

---
updated-dependencies:
- dependency-name: "@aws-sdk/client-ssm"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

modules/webhook/lambdas/webhook/package.json

@@ -37,7 +37,7 @@
     "typescript": "^4.4.4"
   },
   "dependencies": {
-    "@aws-sdk/client-ssm": "^3.39.0",
+    "@aws-sdk/client-ssm": "^3.40.0",
     "@octokit/rest": "^18.12.0",
     "@octokit/webhooks": "^9.17.0",
     "aws-lambda": "^1.0.6",