Update php-fpm_exporter to version 2.0.1

build.sh

@@ -36,7 +36,7 @@ install_packages ${BUILD_PACKAGES} ${PACKAGES}
 
 # Install the php-fpm prometheus exporter binary (no package yet).
 curl -sL -o /usr/sbin/php-fpm-exporter \
-     https://github.com/hipages/php-fpm_exporter/releases/download/v1.0.0/php-fpm_exporter_1.0.0_linux_amd64
+     https://github.com/hipages/php-fpm_exporter/releases/download/v2.0.1/php-fpm_exporter_2.0.1_linux_amd64
 chmod 0755 /usr/sbin/php-fpm-exporter
 
 # Set the PHP_FPM_EXPORTER_PORT in envvars, so that it is later picked up by