new feature: remove specific libreoffice version

[elong0527]

No description provided.

[codecov-commenter]

Codecov Report

Merging #68 (b7e1f27) into master (53e795e) will decrease coverage by 0.20%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master      #68      +/-   ##
==========================================
- Coverage   93.30%   93.09%   -0.21%     
==========================================
  Files          36       36              
  Lines        1836     1840       +4     
==========================================
  Hits         1713     1713              
- Misses        123      127       +4     

Impacted Files	Coverage Δ
R/rtf_convert_format.R	14.28% <0.00%> (-0.79%)	⬇️

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[nanxstats]

It looks like the R CMD check workflow
https://github.com/Merck/r2rtf/blob/master/.github/workflows/R-CMD-check.yaml

is outdated compared to the latest version
https://github.com/r-lib/actions/blob/master/examples/check-standard.yaml

Please update the workflow and rerun the checks.

(Actually, all workflows are outdated, please update them all.)

[nanxstats]

@elong0527 -you can merge this now. It is better that I send a separate PR later.