Update dependency commons-io:commons-io to v2.7

[dev-mend-for-github-com[bot]]

This PR contains the following updates:

Package	Type	Update	Change
commons-io:commons-io (source)	compile	minor	2.6 -> 2.7

By merging this PR, the issue #14 will be automatically resolved and closed:

Severity	CVSS Score	CVE	Reachability
Medium	4.8	CVE-2021-29425

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