chore(deps): update dependency influxdata/telegraf to v1.38.4 (#1715)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

packages/telegraf/Makefile

@@ -7,7 +7,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=telegraf
 # renovate: datasource=github-tags depName=influxdata/telegraf
-PKG_VERSION:=1.38.3
+PKG_VERSION:=1.38.4
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz