chore: update to debian-base v1.7.0

[aramase]

Signed-off-by: Anish Ramasekar anish.ramasekar@gmail.com

What this PR does / why we need it:
Updates to debian-base v1.7.0 that resolves CVE-2021-3520. Removes cifs-utils as it's not
required for the driver.

Which issue(s) this PR fixes (optional, using fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when the PR gets merged):
Fixes #

Special notes for your reviewer:

[k8s-ci-robot]

@aramase: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
pull-secrets-store-csi-driver-e2e-aws	3de1ed4	link	/test pull-secrets-store-csi-driver-e2e-aws

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aramase, sozercan

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[tam7t]

/lgtm