update nginx version to 1.27.2 for ubi-ppc64le dependency (#6757)

update nginx version to 1.27.2

build/dependencies/Dockerfile.ubi-ppc64le

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1.8
-FROM nginx:1.27.1@sha256:287ff321f9e3cde74b600cc26197424404157a72043226cbbf07ee8304a2c720 AS nginx
+FROM nginx:1.27.2@sha256:28402db69fec7c17e179ea87882667f1e054391138f77ffaf0c3eb388efc3ffb AS nginx
 
 FROM redhat/ubi9:9.4@sha256:ee0b908e958a1822afc57e5d386d1ea128eebe492cb2e01b6903ee19c133ea75 AS rpm-build
 ARG NGINX