chore: using csv.DictReader to read csv files to remove pandas

[dungdm93]

Signed-off-by: Đặng Minh Dũng dungdm93@live.com

Summary of Changes

Currently, amundsendatabuilder use pandas to read csv file like this:

        with open(node_file, 'r', encoding='utf8') as node_csv:
            for node_record in pandas.read_csv(node_csv, na_filter=False).to_dict(orient='records'):
                label = node_record[NODE_LABEL_KEY]
                if label not in self.labels:
                    self._try_create_index(label)
                    self.labels.add(label)

It seem be overkilled for this simple case, so this PR use csv.DictReader instead and remove pandas from the requirements in order to not install unnecessary dependency.

Tests

Rerun the quick start script locally.

Documentation

What documentation did you add or modify and why? Add any relevant links then remove this line

CheckList

Make sure you have checked all steps below to ensure a timely review.

• PR title addresses the issue accurately and concisely. Example: "Updates the version of Flask to v1.0.2"
  • In case you are adding a dependency, check if the license complies with the ASF 3rd Party License Policy.
• PR includes a summary of changes.
• PR adds unit tests, updates existing unit tests, OR documents why no test additions or modifications are needed.
• In case of new functionality, my PR adds documentation that describes how to use it.
  • All the public functions and the classes in the PR contain docstrings that explain what it does
• PR passes make test

[feng-tao]

hey @dungdm93 , thanks for the contribution. But we used to do the way in this pr before @rogertangcn fixed it in #382 as using csv reader has bunches of issues like amundsen-io/amundsen#513.

[dungdm93]

Oh, because of infer schema. Thanks for your explanation.
I'm going to close this MR right now.