[SPARK-35061][BUILD] Upgrade pycodestyle from 2.6.0 to 2.7.0

[HyukjinKwon]

What changes were proposed in this pull request?

This PR bumps up the version of pycodestyle from 2.6.0 to 2.7.0 released a month ago.

Why are the changes needed?

2.7.0 includes three major fixes below (see https://readthedocs.org/projects/pycodestyle/downloads/pdf/latest/):

• Fix physical checks (such as W191) at end of file. PR [STREAMING] SPARK-2009 Key not found exception when slow receiver starts #961.
• Add --indent-size option (defaulting to 4). PR Minor: Fix documentation error from apache/spark#946 #970.
• W605: fix escaped crlf false positive on windows. PR Use pluggable clock in DAGSheduler #SPARK-2031 #976

The first and third ones could be useful for dev to detect the styles.

Does this PR introduce any user-facing change?

No, dev-only.

How was this patch tested?

Manually tested locally.

[SparkQA]

Kubernetes integration test starting
URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/41908/

[SparkQA]

Kubernetes integration test status failure
URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/41908/

[SparkQA]

Test build #137328 has finished for PR 32160 at commit a9f9893.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[SparkQA]

Kubernetes integration test starting
URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/41922/

[SparkQA]

Kubernetes integration test status failure
URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/41922/

[github-actions]

Test build #748029554 for PR 32160 at commit a9f9893.

[SparkQA]

Test build #137343 has finished for PR 32160 at commit fe07e5c.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[dongjoon-hyun]

+1, LGTM. Merged to master. Thanks, @HyukjinKwon .

[github-actions]

Test build #748029554 for PR 32160 at commit fe07e5c.

[HyukjinKwon]

Thank you @dongjoon-hyun !