fix go-tests-1.19 to actually pass 1.19 as the version. previously wa…

…s just testing 1.20

.github/workflows/go-tests.yml

@@ -419,6 +419,7 @@ jobs:
       runs-on: ${{ needs.setup.outputs.compute-xl }}
       repository-name: ${{ github.repository }}
       go-tags: "${{ github.event.repository.name == 'consul-enterprise' && 'consulent consulprem consuldev' || '' }}"
+      go-version: "1.19"
     permissions:
       id-token: write # NOTE: this permission is explicitly required for Vault auth.
       contents: read