.github: Run go/libraries/doltcore/sqle/altertests in separate job. Run them without -race.

.github/workflows/ci-go-tests.yaml

@@ -55,3 +55,27 @@ jobs:
         done
       env:
         MATRIX_OS: ${{ matrix.os }}
+  altertests:
+    name: Go tests sqle/altertests
+    defaults:
+      run:
+        shell: bash
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-10.15, ubuntu-18.04, windows-latest]
+    steps:
+    - name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        go-version: ^1.15
+      id: go
+    - uses: actions/checkout@v2
+    - name: Test All
+      working-directory: ./go
+      run: |
+        go test -timeout 30m -race ./libraries/doltcore/sqle/altertests
+      env:
+        MATRIX_OS: ${{ matrix.os }}
+        DOLT_TEST_RUN_ALTERTESTS: "true"