Bump doctrine/common from 2.3.0 to 2.4.3 in /WebService

Bumps [doctrine/common](https://github.com/doctrine/common) from 2.3.0 to 2.4.3.
- [Release notes](https://github.com/doctrine/common/releases)
- [Commits](doctrine/common@2.3.0...v2.4.3)

---
updated-dependencies:
- dependency-name: doctrine/common
  dependency-type: direct:production
...

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

Author: dependabot[bot]

WebService/composer.json

@@ -6,7 +6,7 @@
     },
     "require": {
         "php": ">=5.3.3",
-        "doctrine/common": "2.3.0",
+        "doctrine/common": "2.4.3",
         "doctrine/dbal": "2.3.4"
      },
     "require-dev": {