chore(deps-dev): bump @mongodb-js/signing-utils from 0.4.0 to 0.4.3 (#1141)

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

Author: dependabot[bot]

package-lock.json

@@ -1439,7 +1439,7 @@
     "@mongodb-js/oidc-plugin": "^2.0.3",
     "@mongodb-js/prettier-config-devtools": "^1.0.2",
     "@mongodb-js/sbom-tools": "^0.8.1",
-    "@mongodb-js/signing-utils": "^0.4.0",
+    "@mongodb-js/signing-utils": "^0.4.3",
     "@mongosh/service-provider-core": "^3.6.0",
     "@testing-library/react": "^14.3.1",
     "@testing-library/user-event": "^14.5.2",