chore(bazel): add MODULE.bazel files for bzlmod (#1890)

This provides bzlmod for `bazel_ci_rules`, see
https://bazel.build/external/migration

Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>

Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
diff --git a/.gitignore b/.gitignore
index 93343bc..090278a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,7 @@
 
 # Bazel output files.
 /bazel-*
+MODULE.bazel.lock
 
 # Intermediate files created by the gitbundle tool.
 /gitbundle/bazelbuild/
diff --git a/rules/.bazelrc b/rules/.bazelrc
new file mode 100644
index 0000000..3ce91d2
--- /dev/null
+++ b/rules/.bazelrc
@@ -0,0 +1 @@
+common --enable_bzlmod
diff --git a/rules/MODULE.bazel b/rules/MODULE.bazel
new file mode 100644
index 0000000..b4d0ebb
--- /dev/null
+++ b/rules/MODULE.bazel
@@ -0,0 +1 @@
+module(name = "bazel_ci_rules", version = "")
diff --git a/rules/WORKSPACE.bzlmod b/rules/WORKSPACE.bzlmod
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/rules/WORKSPACE.bzlmod