Install TagBot as a GitHub Action

[JuliaTagBot]

You're receiving this pull request because the now-deprecated Julia TagBot GitHub App is installed for this repository. This pull request installs TagBot as a GitHub Action.
If this PR does not belong in this repository for any reason, feel free to close it.

See this Discourse thread for more details and to ask questions.
Please do not comment on this pull request, because it is unlikely that I (@christopher-dG) will see it.

[codecov]

Codecov Report

Merging #303 into master will increase coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #303      +/-   ##
==========================================
+ Coverage   94.08%   94.14%   +0.05%     
==========================================
  Files          20       20              
  Lines        1691     1691              
==========================================
+ Hits         1591     1592       +1     
+ Misses        100       99       -1     

Impacted Files	Coverage Δ
src/plugins/parallel_schemes.jl	96.34% <0.00%> (+1.21%)	⬆️

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