Do not create tags that are missing from the legacy namespace

Only refresh tags that are already published in docker.io/phpmyadmin/phpmyadmin. Publishing new tags there would attract more users to a namespace that is meant to be deprecated, so a tag that only exists in the official image is now skipped with the reason "not published here, not creating it".

Co-Authored-By: DeepSeek <noreply@deepseek.com>
Signed-off-by: William Desportes <williamdes@wdes.fr>

Author: williamdes

.github/scripts/mirror-official-images.sh

@@ -134,9 +134,11 @@ decide() {
 		IFS=$'\t' read -r result_dst_digest result_dst_version result_dst_created <<<"${dst_meta}"
 	fi
 
+	# Only refresh tags that already exist here: publishing new ones would
+	# attract more users to a namespace that is meant to be deprecated
 	if [ -z "${result_dst_digest}" ]; then
-		result_action="copy"
-		result_reason="missing from the target"
+		result_action="skip"
+		result_reason="not published here, not creating it"
 		return 0
 	fi
 

.github/workflows/mirror-official-images.yml

@@ -1,6 +1,7 @@
 name: Mirror official images
 
 # Mirrors docker.io/library/phpmyadmin into docker.io/phpmyadmin/phpmyadmin.
+# Only tags already published there are refreshed, no new tags are created.
 # See https://github.com/phpmyadmin/docker/issues/363
 
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