fix: upgrade commons-lang:commons-lang from 2.4 to 2.6
fix: upgrade commons-lang:commons-lang from 2.4 to 2.6

Snyk has created this PR to upgrade commons-lang:commons-lang from 2.4 to 2.6.

See this package in Maven Repository:
https://mvnrepository.com/artifact/commons-lang/commons-lang/

See this project in Snyk:
https://app.snyk.io/org/sunet/project/4f763233-60ce-4daf-873d-855d6c2c60ac?utm_source=github&utm_medium=upgrade-pr
SUNET/eduid-mm-service