rel_eng: Fix the name of the ubuntu-* jobs

These were not uploaded for alpha1

Fixes #22844

.gitlab/rel_eng/fetch-gitlab-artifacts/fetch_gitlab.py

@@ -19,8 +19,8 @@ def job_triple(job_name):
         'release-x86_64-windows-release': 'x86_64-unknown-mingw32',
         'release-x86_64-windows-int_native-release': 'x86_64-unknown-mingw32-int_native',
         'release-x86_64-rocky8-release': 'x86_64-rocky8-linux',
-        'release-x86_64-ubuntu20_04-release': 'x86_64-ubuntu20_04-linux',
-        'release-x86_64-ubuntu18_04-release': 'x86_64-ubuntu18_04-linux',
+        'release-x86_64-linux-ubuntu20_04-release': 'x86_64-ubuntu20_04-linux',
+        'release-x86_64-linux-ubuntu18_04-release': 'x86_64-ubuntu18_04-linux',
         'release-x86_64-linux-fedora33-release+debug_info': 'x86_64-fedora33-linux-dwarf',
         'release-x86_64-linux-fedora33-release': 'x86_64-fedora33-linux',
         'release-x86_64-linux-fedora27-release': 'x86_64-fedora27-linux',