Update dependency org.apache.httpcomponents:httpclient to v4.5.13

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

This PR contains the following updates:

Package	Type	Update	Change
org.apache.httpcomponents:httpclient	compile	minor	4.3.4 -> 4.5.13

By merging this PR, the issue #13 will be automatically resolved and closed:

Severity	CVSS Score	CVE	Reachability
Medium	6.5	WS-2019-0379	Unreachable
Medium	5.3	CVE-2020-13956	Unreachable
Medium	5.3	WS-2017-3734	Unreachable
Medium	4.8	CVE-2014-3577	Unreachable
Low	3.7	CVE-2015-5262	Unreachable

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