Bump twig/twig from 3.3.8 to 3.4.3

Bumps [twig/twig](https://github.com/twigphp/Twig) from 3.3.8 to 3.4.3.
- [Release notes](https://github.com/twigphp/Twig/releases)
- [Changelog](https://github.com/twigphp/Twig/blob/3.x/CHANGELOG)
- [Commits](twigphp/Twig@v3.3.8...v3.4.3)

---
updated-dependencies:
- dependency-name: twig/twig
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

composer.json

@@ -11,7 +11,7 @@
         "docusign/esign-client": "6.8.0",
         "docusign/rooms-client": "2.0.0",
         "docusign/monitor-client": "1.1.0",
-        "twig/twig": "3.3.8",
+        "twig/twig": "3.4.3",
         "league/oauth2-client": "2.6.1",
         "ext-json": "*",
         "guzzlehttp/guzzle": "7.4.5",