Change JobSink execution mode variable to K_EXECUTION_MODE

[pierDipi]

Align to K_SINK.

[creydr]

@pierDipi can you adjust the tests? e.g.

=== RUN   TestReconcile/Successful_reconciliation
    jobsink_test.go:236: Unexpected create (-want, +got):
          &v1.Job{
          	TypeMeta:   {},
          	ObjectMeta: {Name: "test-jobSinkzdfkp", Namespace: "test-namespace"},
          	Spec: v1.JobSpec{
          		... // 8 identical fields
          		Selector:       nil,
          		ManualSelector: nil,
          		Template: v1.PodTemplateSpec{
          			ObjectMeta: {},
          			Spec: v1.PodSpec{
          				Volumes:        nil,
          				InitContainers: nil,
          				Containers: []v1.Container{
          					{
          						... // 5 identical fields
          						Ports:   nil,
          						EnvFrom: nil,
          						Env: []v1.EnvVar{
          							{Name: "KNATIVE_EXECUTION_MODE", Value: "batch"},
        + 							{Name: "K_EXECUTION_MODE", Value: "batch"},
          						},
          						Resources:    {},
          						ResizePolicy: nil,
          						... // 14 identical fields
          					},
          				},
          				EphemeralContainers: nil,
          				RestartPolicy:       "",
          				... // 34 identical fields
          			},
          		},
          		TTLSecondsAfterFinished: nil,
          		CompletionMode:          nil,
          		... // 3 identical fields
          	},
          	Status: {},
          }
--- FAIL: TestReconcile/Successful_reconciliation (0.41s)

[matzew]

/lgtm
/approve

[matzew]

/hold
there is test fails

• pkg/apis/sinks/v1alpha1/job_sink_defaults_test.go
• pkg/reconciler/jobsink/jobsink_test.go

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.27%. Comparing base (65da6fc) to head (e270746).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8350   +/-   ##
=======================================
  Coverage   64.27%   64.27%           
=======================================
  Files         390      390           
  Lines       23279    23279           
=======================================
  Hits        14963    14963           
  Misses       7522     7522           
  Partials      794      794           

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[pierDipi]

/unhold

[creydr]

/lgtm

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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