prometheus: update to 2.25.2

See changes at upstream release log:
https://github.com/prometheus/prometheus/releases

Signed-off-by: Paul Spooren <mail@aparcar.org>

utils/prometheus/Makefile

@@ -1,12 +1,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=prometheus
-PKG_VERSION:=2.22.0
-PKG_RELEASE:=2
+PKG_VERSION:=2.25.2
+PKG_RELEASE:=$(AUTORELEASE)
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/prometheus/prometheus/tar.gz/v${PKG_VERSION}?
-PKG_HASH:=9390cbd338d253956184d0f0a6719d21cb5719f0319fc48ee08d5bd48fc87cc2
+PKG_HASH:=85f50c0cfb4db206a59d2c3301e02d685c3fe4b451b41ca943a4eb94935cf4d4
 
 PKG_LICENSE:=Apache-2.0
 PKG_LICENSE_FILES:=LICENSE