Update console dum and user history sql queries to prevent memory leaks

[ptkach]

This change is 

[gbrodman]

@gbrodman reviewed 2 files and all commit messages, and made 1 comment.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on ptkach).

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core/src/main/java/google/registry/ui/server/console/ConsoleDumDownloadAction.java line 119 at r1 (raw file):

                      .createNativeQuery(SQL_TEMPLATE, String.class)
                      .setParameter("registrarId", registrarId)
                      .setParameter("now", clock.now())

oh yay, because we use the built-in java instant i think this works now? That's why we had to use the string replacement before