Update drupal/extlink requirement from 2.0.1 to 2.0.2 (#3633)

Updates the requirements on drupal/extlink to permit the latest version.

---
updated-dependencies:
- dependency-name: drupal/extlink
  dependency-type: direct:production
...

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

composer.json

@@ -71,7 +71,7 @@
         "drupal/environment_indicator": "4.0.10",
         "drupal/exclude_node_title": "1.4.0",
         "drupal/externalauth": "2.0.6",
-        "drupal/extlink": "2.0.1",
+        "drupal/extlink": "2.0.2",
         "drupal/field_group": "3.6.0",
         "drupal/field_group_link": "3.1.0",
         "drupal/flag": "4.0-beta4",