Vulnerability patch in network-tools

[github-actions]

A rebuild of jupyterhub/k8s-network-tools has been found to influence the detected vulnerabilities! This PR will trigger a rebuild because it has updated a comment in the Dockerfile.

About

This scan for known vulnerabilities has been made by aquasecurity/trivy. Trivy was configured to filter the vulnerabilities with the following settings:

• severity: CRITICAL,HIGH
• ignore-unfixed: true

Before

Before trying to rebuild the image, the following vulnerabilities was detected in jupyterhub/k8s-network-tools:0.10.6-n031.h4728fa2f.

Target	Vuln. ID	Package Name	Installed v.	Fixed v.
alpine	CVE-2020-1971	libcrypto1.1	1.1.1g-r0	1.1.1i-r0
alpine	CVE-2020-1971	libssl1.1	1.1.1g-r0	1.1.1i-r0

After

No vulnerabilities! 🎉

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