chore: update releases

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

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -36,4 +36,4 @@ jobs:
           - /usr/etc/buildkit/buildkitd.toml:/etc/buildkit/buildkitd.toml
     steps:
       - name: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5

Pkgfile

@@ -4,7 +4,7 @@ format: v1alpha2
 
 vars:
   # renovate: datasource=github-tags extractVersion=^v(?<version>.*)$ depName=u-boot/u-boot
-  uboot_version: 2023.01
+  uboot_version: 2025.07
   uboot_sha256: 69423bad380f89a0916636e89e6dcbd2e4512d584308d922d1039d1e4331950f
   uboot_sha512: 417a28267eb7875820d08fafc7316f164663609378637539e71648b0b9b7d28796b6c381717f31b0ab6472805fefd32628ef7d1b2e7b9f3c51c8ad122993f679
 labels: