chore(deps): update alpine docker tag to v20231219 (#13308)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/actions/post-release/Dockerfile

@@ -1,5 +1,5 @@
 # Container image that runs your code
-FROM alpine:20230329
+FROM alpine:20231219
 
 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:20230329
+FROM alpine:20231219
 
 RUN apk add --no-cache curl jq git bash