[release/10.0] [browser] Append uniqueness to webcil temp path & move instead of copy #119258
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Backport of #119059 to release/10.0
/cc @maraf
Customer Impact
dotnet/aspnetcore#61987
If customers build Blazor based application in parallel (build whole solution or multi-target) there is possibility that a long running target run in parallel and try to write to the same files. This PR reduces the probability.
Regression
Testing
Existing tests cover the conversion to webcil format and integration into the whole build. Manual tests have been done regarding the parallel build execution.
Risk
Low.