Update reference docs table 29.1. (Cache SpEL available metadata) with @CachePut details [SPR-12125]

[spring-projects-issues]

Phil Webb opened SPR-12125 and commented

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Referenced from: commits eee8184

[spring-projects-issues]

Phil Webb commented

See https://jira.spring.io/browse/SPR-10664?focusedCommentId=107206&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-107206