env mode strict for top level turbo

this is to ensure that env vars set for this top level turbo invocation dont filter down into the turbo
executed in the test

.github/workflows/test.yml

@@ -276,7 +276,7 @@ jobs:
  key: prysk-venv-${{ matrix.os.name }}
 
  - name: Integration Tests
- run: turbo run test --filter=turborepo-tests-integration
+ run: turbo run test --filter=turborepo-tests-integration --env-mode=strict
  env:
  GO_TAG: rust
 
@@ -304,7 +304,7 @@ jobs:
  github-token: "${{ secrets.GITHUB_TOKEN }}"
 
  - name: E2E Tests
- run: turbo run test --filter=turborepo-tests-e2e --remote-only --token=${{ secrets.TURBO_TOKEN }} --team=${{ vars.TURBO_TEAM }} --color
+ run: turbo run test --filter=turborepo-tests-e2e --remote-only --token=${{ secrets.TURBO_TOKEN }} --team=${{ vars.TURBO_TEAM }} --color --env-mode=strict
 
  turborepo_examples:
  name: Turborepo Examples
@@ -365,7 +365,7 @@ jobs:
  # Note: using CLI flags instead of env vars because
  # envs var would apply to the actual tests that exercise turbo also,
  # making test output non-deterministic.
- run: turbo run example-test --continue --color --remote-only --token=${{ secrets.TURBO_TOKEN }} --team=${{ vars.TURBO_TEAM }}
+ run: turbo run example-test --continue --color --remote-only --token=${{ secrets.TURBO_TOKEN }} --team=${{ vars.TURBO_TEAM }} --env-mode=strict
 
  # Re-enable corepack, actions/setup-node invokes other package managers and
  # that causes corepack to throw an error, so we disable it here. The "Post" step