fix: switch to busybox:stable-musl for builds

Author: sjinks

wordpress/Dockerfile

@@ -1,22 +1,22 @@
 # syntax=docker/dockerfile:1.7
-FROM --platform=$BUILDPLATFORM scratch AS build-wp
+FROM --platform=$BUILDPLATFORM busybox:stable-musl@sha256:7fe2d84eca21fa921a1006acaa68da15ed0acb7e1d21e5f3149bb6923af38498 AS build-wp
 ARG WP_GIT_REF
 ADD https://github.com/WordPress/WordPress.git#${WP_GIT_REF} /wp
+RUN rm -rf /wp/wp-content
 COPY extra/ /wp/
-RUN echo "${WP_GIT_REF}" > /wp/wp-content/.version
 
 FROM alpine:3.21.3@sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c AS build-wptl
 ARG WP_GIT_REF
 RUN \
-    apk add --no-cache curl subversion && \
+    apk add --no-cache subversion && \
     if [ -z "${WP_GIT_REF}" ]; then \
         TESTS_TAG=trunk; \
     else \
         TESTS_TAG="tags/${WP_GIT_REF}"; \
     fi && \
     svn co --quiet --ignore-externals "https://develop.svn.wordpress.org/${TESTS_TAG}/tests/phpunit/includes/" /wordpress-tests-lib/includes && \
     svn co --quiet --ignore-externals "https://develop.svn.wordpress.org/${TESTS_TAG}/tests/phpunit/data/"     /wordpress-tests-lib/data && \
-    curl -sL "https://develop.svn.wordpress.org/${TESTS_TAG}/wp-tests-config-sample.php" | \
+    wget -qO- "https://develop.svn.wordpress.org/${TESTS_TAG}/wp-tests-config-sample.php" | \
         sed \
             "s/youremptytestdbnamehere/wordpress_test/; s/yourusernamehere/wordpress/; s/yourpasswordhere/wordpress/; s/localhost/database/; s:dirname( __FILE__ ) . '/src/':'/wp/':" \
         > /wordpress-tests-lib/wp-tests-config.php