[PATCH] ci: use upload-artifacts v1 for dockerized jobs

e9f79acb28 (ci: upgrade to using actions/{up,down}load-artifacts v2,
2021-06-23) changed all calls to that action from v1 to v2, but there
is still an open bug[1] that affects all nodejs actions and prevents
its use in 32-bit linux (as used by the Linux32 container)

move all dockerized jobs to use v1 that was build in C# and therefore
doesn't have this problem which will otherwise manifest with confusing
messages like:

  /usr/bin/docker exec  0285adacc4536b7cd962079c46f85fa05a71e66d7905b5e4b9b1a0e8b305722a sh -c "cat /etc/*release | grep ^ID"
  OCI runtime exec failed: exec failed: container_linux.go:380: starting container process caused: no such file or directory: unknown

[1] https://github.com/actions/runner/issues/1011
---
 .github/workflows/main.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 47876a4f02..9dd41a1742 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml

@@ -258,7 +258,7 @@ jobs:
         - jobname: linux-musl
           image: alpine
         - jobname: Linux32
-          image: daald/ubuntu32:xenial
+          image: i386/ubuntu:xenial
     env:
       jobname: ${{matrix.vector.jobname}}
     runs-on: ubuntu-latest

@@ -271,7 +271,7 @@ jobs:
       if: failure()
     - name: Upload failed tests' directories
       if: failure() && env.FAILED_TEST_ARTIFACTS != ''
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v1
       with:
         name: failed-tests-${{matrix.vector.jobname}}
         path: ${{env.FAILED_TEST_ARTIFACTS}}

-- 
2.33.0.rc1.379.g2890ef5eb6