Update dependency org.keycloak:keycloak-saml-core to v3 - autoclosed

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

This PR contains the following updates:

Package	Type	Update	Change
org.keycloak:keycloak-saml-core	compile	major	1.8.1.Final -> 3.0.0.CR1

By merging this PR, the below vulnerabilities will be automatically resolved:

Severity	CVSS Score	CVE
High	7.5	CVE-2017-2646
Medium	6.5	CVE-2017-2582
Low	3.7	CVE-2013-2172
Low	3.7	CVE-2013-4517

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