v1.2.5

Fixed

• Batch writers (SetKV, SetKVPair, HashSetMultiple) validate their range
  shapes instead of silently writing only part of the data; SetKVPair/
  HashSetMultiple also accept horizontal 2-row ranges.
• RedisUDFChannelUnsubscribe rejects a blank channel instead of reporting
  success for nothing.
• RedisUDFGetMultiple's multipleColumns accepts TRUE/FALSE, 0/1 and
  TRUE/FALSE text, and rejects anything else instead of silently meaning FALSE.
• ToInt64Invariant rejects booleans and fractional numbers (TTL/increment
  arguments must be whole numbers).

Tests

• Unit + E2E coverage for the new validations (rows 42-43).