test: use examples/bzlmod lock file to test

Author: aignas

.bazelci/presubmit.yml

@@ -229,24 +229,32 @@ tasks:
     name: "examples/bzlmod: Ubuntu"
     working_directory: examples/bzlmod
     platform: ubuntu2004
+    test_flags:
+      - "--config=ci"
   integration_test_bzlmod_debian:
     <<: *reusable_build_test_all
     <<: *coverage_targets_example_bzlmod
     name: "examples/bzlmod: Debian"
     working_directory: examples/bzlmod
     platform: debian11
+    test_flags:
+      - "--config=ci"
   integration_test_bzlmod_macos:
     <<: *reusable_build_test_all
     <<: *coverage_targets_example_bzlmod
     name: "examples/bzlmod: macOS"
     working_directory: examples/bzlmod
     platform: macos
+    test_flags:
+      - "--config=ci"
   integration_test_bzlmod_windows:
     <<: *reusable_build_test_all
     # coverage is not supported on Windows
     name: "examples/bzlmod: Windows"
     working_directory: examples/bzlmod
     platform: windows
+    test_flags:
+      - "--config=ci"
 
   integration_test_bzlmod_generate_build_file_generation_ubuntu_min:
     <<: *minimum_supported_version

.gitignore

@@ -52,3 +52,4 @@ user.bazelrc
 # MODULE.bazel.lock is ignored for now as per recommendation from upstream.
 # See https://github.com/bazelbuild/bazel/issues/20369
 MODULE.bazel.lock
+!/examples/bzlmod/MODULE.bazel.lock

examples/bzlmod/.bazelrc

@@ -6,3 +6,5 @@ test --test_output=errors --enable_runfiles
 
 # Windows requires these for multi-python support:
 build --enable_runfiles
+
+common:ci --lockfile_mode=error