Bump ant from 1.9.3 to 1.9.15
Bump ant from 1.9.3 to 1.9.15

Bumps ant from 1.9.3 to 1.9.15.

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
wvengen/proguard-maven-plugin,wvengen/proguard-maven-plugin