Bump operator to v1.1.9 and tidb components to v4.0.9 (#3657)

[ti-srebot]

cherry-pick #3657 to release-1.1

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What problem does this PR solve?

Bump operator to v1.1.9 and tidb components to v4.0.9

What is changed and how does it work?

ref #3613
run script hack/bump-version.sh, and correct some comments by hand.

Code changes

• Has Go code change
• Has CI related scripts change

Tests

• Unit test
• E2E test
• Manual test
• No code

Side effects

• Breaking backward compatibility
• Other side effects:

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release Notes

Please refer to Release Notes Language Style Guide before writing the release note.

NONE

[ti-srebot]

@dragonly you're already a collaborator in bot's repo.

[DanielZhangQD]

LGTM

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (release-1.1@db89860). Click here to learn what that means.
The diff coverage is n/a.

@@              Coverage Diff               @@
##             release-1.1    #3658   +/-   ##
==============================================
  Coverage               ?   52.04%           
==============================================
  Files                  ?      153           
  Lines                  ?    14893           
  Branches               ?        0           
==============================================
  Hits                   ?     7751           
  Misses                 ?     6406           
  Partials               ?      736           

Flag	Coverage Δ
unittest	52.04% <0.00%> (?)

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