DOC: Add version information for warning

[Zeroto521]

• closes #xxxx
• whatsnew entry

Change warning information to deprecated information. And add version number.

[codecov]

Codecov Report

Merging #528 (a48b655) into main (f5617c4) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #528   +/-   ##
=======================================
  Coverage   99.65%   99.65%           
=======================================
  Files          61       61           
  Lines         858      858           
  Branches      102      102           
=======================================
  Hits          855      855           
  Misses          1        1           
  Partials        2        2           

Impacted Files	Coverage Δ
dtoolkit/accessor/dataframe/filter_in.py	100.00% <ø> (ø)
dtoolkit/util/generic/multi_if_else.py	100.00% <ø> (ø)
dtoolkit/util/generic/snake_to_camel.py	100.00% <ø> (ø)

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