Add patch for UnitedDeployment

[chengleqi]

Ⅰ. Describe what this PR does

Add logic related to StrategicMergePatch in ApplySubsetTemplate method in each Adapter (AdvancedStatefulSetAdapter | CloneSetAdapter | DeploymentAdapter | StatefulSetAdapter).

Ⅱ. Does this pull request fix one issue?

#1265

Ⅲ. Describe how to verify it

Use following sample:

apiVersion: apps.kruise.io/v1alpha1
kind: UnitedDeployment
metadata:
  labels:
    controller-tools.k8s.io: "1.0"
  name: uniteddeployment-sample
spec:
  replicas: 6
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: foo
  template:
    statefulSetTemplate:
      metadata:
        labels:
          app: foo
      spec:
        template:
          metadata:
            labels:
              app: foo
          spec:
            containers:
              - name: nginx
                image: nginx
  topology:
    subsets:
      - name: subset-a
        replicas: 1
        patch:
            spec:
              containers:
                - name: nginx
                  image: nginx:1.23.3-alpine
        nodeSelectorTerm:
          matchExpressions:
            - key: node
              operator: In
              values:
                - zone-a
      - name: subset-b
        replicas: 50%
        nodeSelectorTerm:
          matchExpressions:
            - key: node
              operator: In
              values:
                - zone-b
      - name: subset-c
        nodeSelectorTerm:
          matchExpressions:
            - key: node
              operator: In
              values:
                - zone-c

Ⅳ. Special notes for reviews

[sonatype-lift]

goimports: File is not goimports-ed

❗❗ 2 similar findings have been found in this PR

🔎 Expand here to view all instances of this finding

File Path	Line Number
pkg/controller/uniteddeployment/adapter/cloneset_adapter.go	6
pkg/controller/uniteddeployment/adapter/deployment_adapter.go	22

Visit the Lift Web Console to find more details in your report.

---

ℹ️ Expand to see all @sonatype-lift commands

You can reply with the following commands. For example, reply with @sonatype-lift ignoreall to leave out all findings.

Command	Usage
@sonatype-lift ignore	Leave out the above finding from this PR
@sonatype-lift ignoreall	Leave out all the existing findings from this PR
@sonatype-lift exclude <file|issue|path|tool>	Exclude specified file|issue|path|tool from Lift findings by updating your config.toml file

Note: When talking to LiftBot, you need to refresh the page to see its response.
_{Click here to add LiftBot to another repo.}

[sonatype-lift]

goimports: File is not goimports-ed

---

ℹ️ Expand to see all @sonatype-lift commands

You can reply with the following commands. For example, reply with @sonatype-lift ignoreall to leave out all findings.

Command	Usage
@sonatype-lift ignore	Leave out the above finding from this PR
@sonatype-lift ignoreall	Leave out all the existing findings from this PR
@sonatype-lift exclude <file|issue|path|tool>	Exclude specified file|issue|path|tool from Lift findings by updating your config.toml file

Note: When talking to LiftBot, you need to refresh the page to see its response.
_{Click here to add LiftBot to another repo.}

[codecov-commenter]

Codecov Report

Merging #1266 (ac236cc) into master (7d134bf) will decrease coverage by 0.16%.
The diff coverage is 24.61%.

❗ Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

@@            Coverage Diff             @@
##           master    #1266      +/-   ##
==========================================
- Coverage   48.60%   48.44%   -0.16%     
==========================================
  Files         151      151              
  Lines       21005    21113     +108     
==========================================
+ Hits        10210    10229      +19     
- Misses       9680     9769      +89     
  Partials     1115     1115              

Flag	Coverage Δ
unittests	48.44% <24.61%> (-0.16%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ontroller/daemonset/daemonset_predownload_image.go	0.00% <0.00%> (ø)
pkg/controller/sidecarset/sidecarset_processor.go	67.78% <0.00%> (-0.83%)	⬇️
...oller/statefulset/statefulset_predownload_image.go	0.00% <0.00%> (ø)
...deployment/adapter/advanced_statefulset_adapter.go	0.00% <0.00%> (ø)
...oller/uniteddeployment/adapter/cloneset_adapter.go	0.00% <0.00%> (ø)
...ler/uniteddeployment/adapter/deployment_adapter.go	0.00% <0.00%> (ø)
...er/uniteddeployment/adapter/statefulset_adapter.go	0.00% <0.00%> (ø)
.../controller/cloneset/cloneset_predownload_image.go	62.80% <88.88%> (+1.94%)	⬆️
...er/uniteddeployment/uniteddeployment_controller.go	72.56% <100.00%> (+1.19%)	⬆️
...roller/uniteddeployment/uniteddeployment_update.go	74.78% <100.00%> (+0.22%)	⬆️

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[furykerry]

plz add ut that contain patches

[furykerry]

/lgtm

[zmberg]

/approve

[kruise-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: zmberg

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [zmberg]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment