Update Maven to 3.9.9

[php-coder]

Changelog:

• [ ] https://maven.apache.org/docs/history.html
• [ ] https://foojay.io/today/why-you-should-upgrade-to-maven-version-3-8-1-today-or-very-soon/
• [ ] https://mail-archives.apache.org/mod_mbox/maven-announce/202108.mbox/%3C85a7a3d4-c4ae-8e1e-f5c4-832017b79ca3%40apache.org%3E
• 3.9.0
  • [ ] https://maven.apache.org/docs/3.9.0/release-notes.html
  • [ ] https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12316922&version=12350913
• [ ] https://maven.apache.org/docs/3.9.1/release-notes.html
• [ ] https://maven.apache.org/docs/3.9.2/release-notes.html
• [ ] https://github.com/apache/maven/releases/tag/maven-3.9.3
• [ ] https://maven.apache.org/docs/3.9.3/release-notes.html
• [x] https://github.com/apache/maven/releases/tag/maven-3.9.4
• [ ] https://github.com/apache/maven/releases/tag/maven-3.9.5
• [ ] https://github.com/apache/maven/releases/tag/maven-3.9.6
• [ ] https://github.com/apache/maven/releases/tag/maven-3.9.7
• [ ] https://github.com/apache/maven/releases/tag/maven-3.9.8
• [ ] https://github.com/apache/maven/releases/tag/maven-3.9.9