⬆️ Update Add-on base image to v18

Author: renovate[bot]

remote-backup/build.yaml

@@ -1,7 +1,7 @@
 squash: false
 build_from:
-  aarch64: ghcr.io/hassio-addons/base/aarch64:17.2.5
-  amd64: ghcr.io/hassio-addons/base/amd64:17.2.5
-  armhf: ghcr.io/hassio-addons/base/armhf:17.2.5
-  armv7: ghcr.io/hassio-addons/base/armv7:17.2.5
-  i386: ghcr.io/hassio-addons/base/i386:17.2.5
+  aarch64: ghcr.io/hassio-addons/base/aarch64:18.0.3
+  amd64: ghcr.io/hassio-addons/base/amd64:18.0.3
+  armhf: ghcr.io/hassio-addons/base/armhf:18.0.3
+  armv7: ghcr.io/hassio-addons/base/armv7:18.0.3
+  i386: ghcr.io/hassio-addons/base/i386:18.0.3