ci: remove 'Upload failed tests' directories' step from linux32 jobs

Linux32 jobs seem to be getting:

    Error: This request has been automatically failed because it uses a
    deprecated version of `actions/upload-artifact: v1`. Learn more:
    https://github.blog/changelog/2024-02-13-deprecation-notice-v1-and-v2-of-the-artifact-actions/

before doing anything useful.  For now, disable the step.

Ever since actions/upload-artifact@v1 got disabled, mentioning the
offending version of it seems to stop anything from happening.  At
least this should run the same build and test.

See

    https://github.com/git/git/actions/runs/10780030750/job/29894867249

for example.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

.github/workflows/main.yml

@@ -365,12 +365,6 @@ jobs:
       with:
         name: failed-tests-${{matrix.vector.jobname}}
         path: ${{env.FAILED_TEST_ARTIFACTS}}
-    - name: Upload failed tests' directories
-      if: failure() && env.FAILED_TEST_ARTIFACTS != '' && matrix.vector.jobname == 'linux32'
-      uses: actions/upload-artifact@v1 # cannot be upgraded because Node.js Actions aren't supported in this container
-      with:
-        name: failed-tests-${{matrix.vector.jobname}}
-        path: ${{env.FAILED_TEST_ARTIFACTS}}
   static-analysis:
     needs: ci-config
     if: needs.ci-config.outputs.enabled == 'yes'