gitlab-ci: Drop package pipeline upload jobs for release branch

The package pipeline for release versions should not upload packages
automatically to our archive of nightly development versions.

.gitlab-ci.yml

@@ -52,7 +52,7 @@ prep:doc-package:
         - .cmake_doc_artifacts
         - .run_only_for_package
 
-upload:source-package:
+.upload:source-package:
     extends:
         - .rsync_upload_binary
         - .run_only_for_package
@@ -70,7 +70,7 @@ build:help:master:
         - .cmake_org_help
         - .run_only_for_continuous_master
 
-upload:help:master:
+.upload:help:master:
     extends:
         - .rsync_upload_help
         - .run_only_for_continuous_master
@@ -86,7 +86,7 @@ build:help:stage:
         - .cmake_org_help
         - .run_only_for_continuous_stage
 
-upload:help:stage:
+.upload:help:stage:
     extends:
         - .rsync_upload_help
         - .run_only_for_continuous_stage
@@ -495,7 +495,7 @@ build:linux-x86_64-package:
     needs:
         - prep:doc-package
 
-upload:linux-x86_64-package:
+.upload:linux-x86_64-package:
     extends:
         - .rsync_upload_binary
         - .run_only_for_package
@@ -519,7 +519,7 @@ build:linux-aarch64-package:
     needs:
         - prep:doc-package
 
-upload:linux-aarch64-package:
+.upload:linux-aarch64-package:
     extends:
         - .rsync_upload_binary
         - .run_only_for_package
@@ -656,7 +656,7 @@ build:macos-package:
     needs:
         - prep:doc-package
 
-upload:macos-package:
+.upload:macos-package:
     extends:
         - .rsync_upload_binary
         - .run_only_for_package
@@ -679,7 +679,7 @@ build:macos10.10-package:
     needs:
         - prep:doc-package
 
-upload:macos10.10-package:
+.upload:macos10.10-package:
     extends:
         - .rsync_upload_binary
         - .run_only_for_package