revert(ci): Downgrade to Docker alpine 3.16 (#13462)

Author: puneetbehl

.github/actions/post-release/Dockerfile

@@ -1,5 +1,5 @@
 # Container image that runs your code
-FROM alpine:20231219
+FROM alpine:3.16
 
 RUN apk add --no-cache curl jq git bash
 

.github/actions/pre-release/Dockerfile

@@ -1,5 +1,5 @@
 # Container image that runs your code
-FROM alpine:20231219
+FROM alpine:3.16
 
 RUN apk add --no-cache curl jq git bash