Upgrade NewRelic agent to v10.6.0.318 (#405)

Author: starred-gijs

layers/newrelic/Dockerfile

@@ -2,7 +2,7 @@ ARG PHP_VERSION
 FROM bref/build-php-$PHP_VERSION:1.7.14 AS ext
 
 # Build the New Relic Agent - install silently
-ARG NEWRELIC_VERSION=10.5.0.317
+ARG NEWRELIC_VERSION=10.6.0.318
 RUN \
   curl -L https://download.newrelic.com/php_agent/archive/${NEWRELIC_VERSION}/newrelic-php5-${NEWRELIC_VERSION}-linux.tar.gz | tar -C /tmp -zx && \
   export NR_INSTALL_USE_CP_NOT_LN=1 && \