Log4J version bump to >=2.17.1

[msueberkrueb]

As stated here: https://logging.apache.org/log4j/2.x/security.html versions below 2.17.1 are affected from the Log4Shell vulnerability.

Therefore the dependency should be bumped to a version greater or equal to 2.17.1.

Proposed changes:

Edit line 111-112 in build.gradle from

implementation('org.apache.logging.log4j:log4j-api:2.11.+')
implementation('org.apache.logging.log4j:log4j-core:2.11.+')

to:

implementation('org.apache.logging.log4j:log4j-api:2.17.1')
implementation('org.apache.logging.log4j:log4j-core:2.17.1')

[PaintNinja]

Closed/fixed by a648df3