[Go SDK] skip automated expansion test

[riteshghorse]

Part of #25303

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[riteshghorse]

Run Go PostCommit

[codecov]

Codecov Report

Merging #25304 (6a1b5a6) into master (86480f3) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #25304      +/-   ##
==========================================
- Coverage   72.95%   72.94%   -0.01%     
==========================================
  Files         745      745              
  Lines       99174    99174              
==========================================
- Hits        72348    72345       -3     
- Misses      25461    25463       +2     
- Partials     1365     1366       +1     

Flag	Coverage Δ
go	51.70% <ø> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
sdks/go/pkg/beam/core/metrics/dumper.go	49.20% <0.00%> (-4.77%)	⬇️

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[github-actions]

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R: @jrmccluskey for label go.

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[riteshghorse]

R: @lostluck , Jack is OOO

[github-actions]

Stopping reviewer notifications for this pull request: review requested by someone other than the bot, ceding control

[riteshghorse]

CC: @johnjcasey

[johnjcasey]

LGTM