Quote schema and tables names in restore snapshot

[tomach]

Summary of changes

This adds support for quoting schema and table names when generating the keyword for restoring a snapshot.

E.g. restoring a snapshot with croud and ... --type tables --tables doc.table-with-dashes,doc.my-table ... results in ... TABLE "doc"."table-with-dashes","doc"."my-table" ... in the generated command.

Checklist

• [x] Link to issue this PR refers to: https://github.com/crate/cloud/issues/1945
• [x] Relevant changes are reflected in CHANGES.rst
• [x] Added or changed code is covered by tests
• [x] Documentation has been updated if necessary
• [x] Changed code does not contain any breaking changes (or this is a major version change)