Update dependency org.apache.sling:maven-sling-plugin to v2.2.0 - autoclosed

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

This PR contains the following updates:

Package	Type	Update	Change
org.apache.sling:maven-sling-plugin (source)	compile	minor	2.0.4-incubator -> 2.2.0

By merging this PR, the issue #39 will be automatically resolved and closed:

Severity	CVSS Score	CVE	Reachability
Medium	5.5	CVE-2020-15250	Unreachable
Low	3.7	CVE-2015-2944	Unreachable

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