chore(deps): update nginx docker tag to v1.27.3

Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>

Author: red-hat-konflux[bot]

devenv/docker/blocks/auth/nginx_proxy_mac/Dockerfile

@@ -1,4 +1,4 @@
-FROM nginx:1.27.2-alpine
+FROM nginx:1.27.3-alpine
 
 COPY nginx.conf /etc/nginx/nginx.conf
 COPY htpasswd /etc/nginx/htpasswd

devenv/docker/blocks/auth/prometheus_basic_auth_proxy/Dockerfile

@@ -1,4 +1,4 @@
-FROM nginx:1.27.2-alpine
+FROM nginx:1.27.3-alpine
 
 COPY nginx.conf /etc/nginx/nginx.conf
 COPY htpasswd /etc/nginx/htpasswd