Always build CLI E2E Docker image, independent of matrix gate

The build_cli_e2e_image reusable workflow was previously gated on
`tests_matrix_requires_cli_archive` so it only ran when the test matrix
contained at least one job that needed the CLI archive. That gate also
forced the image build to wait for setup_for_tests to finish computing
the matrix, which delayed test jobs that depend on the image.

Drop the gate so the image build kicks off in parallel with setup. The
extra cost on PRs that don't need the image is one short-lived Docker
build job, which is preferable to serializing every CLI E2E test run on
matrix setup.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: radical

.github/workflows/tests.yml

@@ -86,7 +86,6 @@ jobs:
     name: Build CLI E2E Docker image
     uses: ./.github/workflows/build-cli-e2e-image.yml
     needs: setup_for_tests
-    if: ${{ fromJson(needs.setup_for_tests.outputs.tests_matrix_requires_cli_archive).include[0] != null }}
 
   tests_no_nugets:
     name: ${{ matrix.shortname }}