ci: drop aspect workflows and test on linux

.github/workflows/ci.yaml

@@ -16,11 +16,15 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  # Tests are run on Linux using Aspect Workflows on Buildkite.
-  # Just keep a minimal macos footprint to avoid obvious regressions.
   test-macos:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4
       - uses: bazel-contrib/setup-bazel@0.15.0
       - run: bazel test //...
+  test-linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: bazel-contrib/setup-bazel@0.15.0
+      - run: bazel test //...

README.md

@@ -27,13 +27,6 @@ formats other than `.deb`).
 
 # Usage
 
-## Bzlmod (Bazel 6+)
-
-> [!NOTE]
-> If you are using Bazel 6 you need to enable Bzlmod by adding
-> `common --enable_bzlmod` to `.bazelrc` If you are using Bazel 7+
-> [it's enabled by default].
-
 Add the following to your `MODULE.bazel` file:
 
 ```starlark
@@ -59,17 +52,6 @@ git_override(
 )
 ```
 
-## `WORKSPACE` (legacy)
-
-> [!WARNING]
-> Bzlmod is replacing the legacy `WORKSPACE` system. The `WORKSPACE` file will
-> be disabled by default in Bazel 8 (late 2024) and will be completely removed
-> in Bazel 9 (late 2025). Please migrate to Bzlmod following the steps in the
-> [Bzlmod migration guide].
-
-You can find the latest release in the [`rules_distroless` Github releases
-page].
-
 # Examples
 
 The [examples](/examples) demonstrate how to accomplish typical tasks such as