update pause to 3.2 since we changed the build

see: 86ed97f

Author: BenTheElder

build/pause/Makefile

@@ -20,7 +20,7 @@ REGISTRY ?= staging-k8s.gcr.io
 IMAGE = $(REGISTRY)/pause
 IMAGE_WITH_ARCH = $(IMAGE)-$(ARCH)
 
-TAG = 3.1
+TAG = 3.2
 REV = $(shell git describe --contains --always --match='v*')
 
 # Architectures supported: amd64, arm, arm64, ppc64le and s390x