Bump go SDK build & test to larger runner (#2790)

Fixes build failures where we run out of memory:

-
https://github.com/pulumi/pulumi-azure-native/actions/runs/6339573390/job/17219363077

```
  compile: writing output: write $WORK/b001/_pkg_.a: no space left on device
  
  error: error in compiling Go: unable to run `go build`: exit status 1
```

Author: danielrbradley

.github/workflows/build-test.yml

@@ -84,7 +84,7 @@ jobs:
   build_sdks:
     needs: prerequisites
     # Use big runner for dotnet and nodejs because we need more memory and more compute, respectively
-    runs-on: ${{ (matrix.language == 'dotnet' || matrix.language == 'nodejs') && 'pulumi-ubuntu-8core' || 'ubuntu-latest' }}
+    runs-on: ${{ (matrix.language == 'dotnet' || matrix.language == 'nodejs' || matrix.language == 'go') && 'pulumi-ubuntu-8core' || 'ubuntu-latest' }}
     strategy:
       fail-fast: true
       matrix: