chore: fix formatting issues

New `black` is complaining about reformatting some of our files,
let's make it happy:

    $ black . --check
    would reformat rust-vmm-ci/test_run.py
    would reformat rust-vmm-ci/integration_tests/conftest.py
    would reformat rust-vmm-ci/.buildkite/autogenerate_pipeline.py

    Oh no! 💥 💔 💥
    3 files would be reformatted, 5 files would be left unchanged.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>

.buildkite/autogenerate_pipeline.py

@@ -370,8 +370,7 @@ def generate_pipeline(config_file, platform_allowlist):
 
 
 if __name__ == "__main__":
-    help_text = dedent(
-        """
+    help_text = dedent("""
         This script supports overriding the following configurations through
         environment variables:
         - X86_LINUX_AGENT_TAGS: overrides the tags by which the x86_64 linux
@@ -383,8 +382,7 @@ if __name__ == "__main__":
         https://github.com/buildkite-plugins/docker-buildkite-plugin.
         - TESTS_TO_SKIP: specifies a list of tests to be skipped.
         - TIMEOUTS_MIN: overrides the timeout value for specific tests.
-        """
-    )
+        """)
     parser = ArgumentParser(description=help_text, formatter_class=RawTextHelpFormatter)
     # By default we're generating the rust-vmm-ci pipeline with the test
     # configuration committed to this repository.

integration_tests/conftest.py

@@ -2,7 +2,6 @@
 # SPDX-License-Identifier: Apache-2.0
 import pytest
 
-
 PROFILE_CI = "ci"
 PROFILE_DEVEL = "devel"
 

test_run.py

@@ -33,16 +33,14 @@ def retrieve_test_list(config_file=f"{PARENT_DIR}/.buildkite/test_description.js
 
 
 if __name__ == "__main__":
-    help_text = dedent(
-        """
+    help_text = dedent("""
         This script allows running all the tests at once on the local machine.
         The tests "test_benchmark.py" and "test_commit_format.py" work properly
         on the local machine only when the environment variables REMOTE and
         BASE_BRANCH are set. Otherwise the default values are "origin" for the
         remote name of the upstream repository and "main" for the name of the
         base branch, and these tests may not work as expected.
-        """
-    )
+        """)
     parser = ArgumentParser(description=help_text, formatter_class=RawTextHelpFormatter)
     parser.parse_args()