key-store-ssl-certificate -> key-store-clear-password is wrapping parsing inside the Supplier

This means we get errors like this where the parser is accessed after parsing should have finished: -

{{[disconnected /] connect
java.lang.IllegalStateException: Current event not START_ELEMENT
at com.ctc.wstx.sr.BasicStreamReader.getAttributeCount(BasicStreamReader.java:584)
at org.wildfly.client.config.BasicXMLStreamReader.getAttributeCount(BasicXMLStreamReader.java:191)
at org.wildfly.client.config.AbstractDelegatingXMLStreamReader.getAttributeCount(AbstractDelegatingXMLStreamReader.java:148)
at org.wildfly.client.config.AbstractDelegatingXMLStreamReader.getAttributeCount(AbstractDelegatingXMLStreamReader.java:148)
at org.wildfly.security.auth.client.ElytronXmlParser.parseClearPassword(ElytronXmlParser.java:1864)
at org.wildfly.security.auth.client.ElytronXmlParser.lambda$parseKeyStoreRefType$43(ElytronXmlParser.java:1270)
at org.wildfly.security.auth.client.ElytronXmlParser.lambda$parseKeyStoreRefType$44(ElytronXmlParser.java:1286)
at org.wildfly.security.auth.client.ElytronXmlParser$PrivateKeyKeyStoreEntryCredentialFactory.get(ElytronXmlParser.java:2232)
at org.wildfly.security.auth.client.ElytronXmlParser.lambda$parseSslContextType$5(ElytronXmlParser.java:434)
at org.wildfly.security.auth.client.ElytronXmlParser.lambda$parseSslContextRuleType$6(ElytronXmlParser.java:457)
at org.wildfly.security.auth.client.ElytronXmlParser.lambda$parseRulesType$8(ElytronXmlParser.java:493)
at org.wildfly.security.auth.client.ElytronXmlParser.parseAuthenticationClientType(ElytronXmlParser.java:292)
}}