Mark bazel_docker_sandboxing_test as manual.

We cannot run it on Bazel CI, because nested Docker via a shared Docker socket is a security risk, but nested Docker via rootless Docker or Podman doesn't work reliably enough yet.

RELNOTES: None.
PiperOrigin-RevId: 295107722

.bazelci/postsubmit.yml

@@ -71,8 +71,6 @@ tasks:
       # Re-enable once fixed: https://github.com/bazelbuild/bazel/issues/8162
       - "-//src/java_tools/buildjar/..."
       - "-//src/java_tools/import_deps_checker/..."
-      # Bazel CI uses Podman, but it's not available on Ubuntu 16.04.
-      - "-//src/test/shell/bazel:bazel_docker_sandboxing_test"
     include_json_profile:
       - build
       - test
@@ -175,8 +173,6 @@ tasks:
       - "//tools/python/..."
       # C++ coverage is not supported on macOS yet.
       - "-//src/test/shell/bazel:bazel_cc_code_coverage_test"
-      # Docker sandboxing needs Docker installed
-      - "-//src/test/shell/bazel:bazel_docker_sandboxing_test"
     include_json_profile:
       - build
       - test

.bazelci/presubmit.yml

@@ -70,8 +70,6 @@ tasks:
       # Re-enable once fixed: https://github.com/bazelbuild/bazel/issues/8162
       - "-//src/java_tools/buildjar/..."
       - "-//src/java_tools/import_deps_checker/..."
-      # Bazel CI uses Podman, but it's not available on Ubuntu 16.04.
-      - "-//src/test/shell/bazel:bazel_docker_sandboxing_test"
   ubuntu1804:
     shards: 4
     shell_commands:
@@ -170,8 +168,6 @@ tasks:
       - "-//src/java_tools/import_deps_checker/..."
       # C++ coverage is not supported on macOS yet.
       - "-//src/test/shell/bazel:bazel_cc_code_coverage_test"
-      # Docker sandboxing needs Docker installed
-      - "-//src/test/shell/bazel:bazel_docker_sandboxing_test"
   windows:
     shards: 4
     batch_commands:

src/test/shell/bazel/BUILD

@@ -898,6 +898,7 @@ sh_test(
     ],
     tags = [
         "local",
+        "manual",  # TODO(philwo) re-enable once Bazel CI supports Docker again
         "no_windows",
     ],
 )