Fix image tag

Author: tsuzu

.github/workflows/tags.js

@@ -25,7 +25,8 @@ incus | 1:6.6-debian12-202411092101 | https://pkgs.zabbly.com/incus/stable bookw
     const dateStr = `${date.getFullYear()}${date.getMonth()+1}${date.getDate()}`
 
     for (const version of versions) {
-        const image = `ghcr.io/${process.env.IMAGE_NAME}-${baseImage}-${version}-${dateStr}`
+        const incusVersion = version.split(':')[1].split('-')[0] // 1:6.7-debian12-202411151825 -> 6.7
+        const image = `ghcr.io/${process.env.IMAGE_NAME}-${baseImage}-${incusVersion}-${dateStr}`
 
         await $`docker buildx build --platform linux/amd64,linux/arm64 --build-arg BASE_IMAGE=${baseImage} --build-arg INCUS_VERSION=${version} -f ./debian-version/Dockerfile -t ${image} .`