http-service: add pause and resume api for http-service

[KanShiori]

What problem does this PR solve?

add pause and resume api for http-service

What is changed and how does it work?

Code changes

• Has Go code change
• Has CI related scripts change

Tests

• Unit test
• E2E test
• Manual test

1. Deploy a new cluster named 'shiori'.
2. Pause the cluster via http-service, and check the tc.

apiVersion: pingcap.com/v1alpha1
kind: TidbCluster
metadata:
  creationTimestamp: "2023-11-02T08:44:43Z"
  generation: 2
  name: db
  namespace: shiori
  resourceVersion: "6729"
  uid: 981badd9-9b5e-454b-84a7-ee81bab71fa3
spec:
  # ...
  suspendAction:
    suspendStatefulSet: true

2. Resume the cluster via http-service, and check the tc.

apiVersion: pingcap.com/v1alpha1
kind: TidbCluster
metadata:
  creationTimestamp: "2023-11-02T08:44:43Z"
  generation: 3
  name: db
  namespace: shiori
  resourceVersion: "7354"
  uid: 981badd9-9b5e-454b-84a7-ee81bab71fa3
spec:
# ...
  suspendAction: {}

• 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.

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[codecov-commenter]

Codecov Report

Merging #5367 (73abff7) into master (e77905f) will increase coverage by 0.01%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5367      +/-   ##
==========================================
+ Coverage   61.58%   61.59%   +0.01%     
==========================================
  Files         228      228              
  Lines       28866    28866              
==========================================
+ Hits        17776    17780       +4     
+ Misses       9345     9342       -3     
+ Partials     1745     1744       -1     

Flag	Coverage Δ
unittest	61.59% <ø> (+0.01%)	⬆️