treewide: bump to bazel 8

Change-Id: I18b6b4a5893167d722bb6270f11da1814c1664e3
Reviewed-on: https://review.monogon.dev/c/monogon/+/3963
Tested-by: Jenkins CI
Reviewed-by: Leopold Schabel <leo@monogon.tech>
diff --git a/third_party/bazelrc/aspect/BUILD.bazel b/third_party/bazelrc/aspect/BUILD.bazel
index 4a870ae..300958e 100644
--- a/third_party/bazelrc/aspect/BUILD.bazel
+++ b/third_party/bazelrc/aspect/BUILD.bazel
@@ -5,7 +5,7 @@
 write_aspect_bazelrc_presets(
     name = "update_aspect_bazelrc_presets",
     presets = [
-        "bazel7",
+        "bazel8",
         "ci",
         "convenience",
         "correctness",