[WFLY-2425] Update slf4j version to forked version with concurrency fix
[WFLY-2425] Update slf4j version to forked version with concurrency fix

pferraro/wildfly,99sono/wildfly,tomazzupan/wildfly,99sono/wildfly,golovnin/wildfly,xasx/wildfly,tadamski/wildfly,iweiss/wildfly,xasx/wildfly,pferraro/wildfly,tomazzupan/wildfly,jstourac/wildfly,wildfly/wildfly,golovnin/wildfly,jstourac/wildfly,rhusar/wildfly,tomazzupan/wildfly,rhusar/wildfly,rhusar/wildfly,wildfly/wildfly,wildfly/wildfly,rhusar/wildfly,xasx/wildfly,jstourac/wildfly,tadamski/wildfly,iweiss/wildfly,iweiss/wildfly,golovnin/wildfly,pferraro/wildfly,jstourac/wildfly,wildfly/wildfly,99sono/wildfly,iweiss/wildfly,tadamski/wildfly,pferraro/wildfly