add security context support to binder pod

[AdheipSingh]

Description

Related Issues

Fixes #570

Checklist

Note: Ensure your PR title follows the Conventional Commits format (e.g., feat(scheduler): add new feature)

• Self-reviewed
• Added/updated tests (if needed)
• Updated documentation (if needed)

Breaking Changes

Additional Notes

[AdheipSingh]

@enoodle - would like some feedback on the approach.

[rich7420]

thanks for the patch!
A little suggestion: You've better develop on your other branch not main branch.

[rich7420]

Here should return some error message.

[itsomri]

The implementation makes sense. I wonder if we can find a more structured way to pass the configuration to the reservation service. What do you think?
Also, please prefix the pr title with "feat:" and add a line in the changelog

Thanks!

[github-actions]

Merging this branch will decrease overall coverage

Impacted Packages	Coverage Δ	🤖
github.com/NVIDIA/KAI-scheduler/cmd/binder/app	0.00% (ø)
github.com/NVIDIA/KAI-scheduler/pkg/apis/kai/v1/binder	26.21% (-2.21%)	👎
github.com/NVIDIA/KAI-scheduler/pkg/binder/binding/resourcereservation	93.43% (ø)
github.com/NVIDIA/KAI-scheduler/pkg/binder/controllers	46.85% (ø)
github.com/NVIDIA/KAI-scheduler/pkg/binder/controllers/integration_tests	0.00% (ø)
github.com/NVIDIA/KAI-scheduler/pkg/operator/operands/binder	71.65% (-3.14%)	👎

---

Coverage by file

Changed files (no unit tests)

Changed File	Coverage Δ	Total	Covered	Missed	🤖
github.com/NVIDIA/KAI-scheduler/cmd/binder/app/app.go	0.00% (ø)	80 (+12)	0	80 (+12)
github.com/NVIDIA/KAI-scheduler/cmd/binder/app/options.go	0.00% (ø)	27 (+2)	0	27 (+2)
github.com/NVIDIA/KAI-scheduler/pkg/apis/kai/v1/binder/binder.go	100.00% (ø)	27	27	0
github.com/NVIDIA/KAI-scheduler/pkg/apis/kai/v1/binder/zz_generated.deepcopy.go	0.00% (ø)	76 (+8)	0	76 (+8)
github.com/NVIDIA/KAI-scheduler/pkg/binder/binding/resourcereservation/resource_reservation.go	93.43% (ø)	213	199	14
github.com/NVIDIA/KAI-scheduler/pkg/operator/operands/binder/resources.go	72.22% (-3.78%)	108 (+8)	78 (+2)	30 (+6)	👎

Please note that the "Total", "Covered", and "Missed" counts above refer to code statements instead of lines of code. The value in brackets refers to the test coverage of that file in the old version of the code.

Changed unit test files

• github.com/NVIDIA/KAI-scheduler/pkg/binder/binding/resourcereservation/resource_reservation_test.go
• github.com/NVIDIA/KAI-scheduler/pkg/binder/controllers/bindrequest_controller_test.go
• github.com/NVIDIA/KAI-scheduler/pkg/binder/controllers/integration_tests/suite_test.go