metrics(ticdc): add resolved ts and add changefeed to dataflow (#4038)

[ti-chi-bot]

This is an automated cherry-pick of #4038

What problem does this PR solve?

• fix etcd worker txn size heatmap
• add owner resolved ts metrics
• add changefeed to dataflow
• add PD uptime
• add PD leader history
• add etcd metrics, eg, mvcc db size, etc.
• cherrypick metrics(ticdc): fix EtcdWorker row (#3993) #3999

Check List

Tests

• Manual test (add detailed scripts or steps below)

Import to grafana.

Related changes

• Need to cherry-pick to the release branch

Release note

None

[ti-chi-bot]

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[codecov-commenter]

Codecov Report

Merging #4105 (c3d7dd6) into release-4.0 (753073a) will increase coverage by 10.1689%.
The diff coverage is 74.2272%.

@@                 Coverage Diff                  @@
##           release-4.0      #4105         +/-   ##
====================================================
+ Coverage      53.7661%   63.9351%   +10.1689%     
====================================================
  Files              153        161          +8     
  Lines            15958      16706        +748     
====================================================
+ Hits              8580      10681       +2101     
+ Misses            6475       5092       -1383     
- Partials           903        933         +30     

[overvenus]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: c3d7dd6