gitlab-ci: Re-organize Windows job tags

Name the tag groups based on the VS version needed, if any.  Drop
VS-related tags from Windows jobs that do not need any pre-installed VS
version.

.gitlab-ci.yml

@@ -728,14 +728,14 @@ build:windows-vs2019-x64-ninja:
         - .windows_vs2019_x64_ninja
         - .cmake_build_windows
         - .cmake_build_artifacts
-        - .windows_builder_tags
+        - .windows_tags_nonconcurrent_vs2019
         - .run_manually
 
 test:windows-vs2019-x64-ninja:
     extends:
         - .windows_vs2019_x64_ninja
         - .cmake_test_windows
-        - .windows_builder_tags
+        - .windows_tags_nonconcurrent_vs2019
         - .cmake_test_artifacts
         - .run_dependent
     dependencies:
@@ -747,7 +747,7 @@ test:windows-vs2019-x64:
     extends:
         - .windows_vs2019_x64
         - .cmake_test_windows_external
-        - .windows_builder_ext_tags
+        - .windows_tags_concurrent_vs2019
         - .cmake_junit_artifacts
         - .run_dependent
     dependencies:
@@ -759,7 +759,7 @@ test:windows-borland5.5:
     extends:
         - .windows_borland5.5
         - .cmake_test_windows_borland
-        - .windows_builder_ext_tags
+        - .windows_tags_concurrent
         - .cmake_junit_artifacts
         - .run_dependent
     dependencies:
@@ -773,7 +773,7 @@ test:windows-borland5.8:
     extends:
         - .windows_borland5.8
         - .cmake_test_windows_borland
-        - .windows_builder_ext_tags
+        - .windows_tags_concurrent
         - .cmake_junit_artifacts
         - .run_dependent
     dependencies:
@@ -787,7 +787,7 @@ test:windows-msvc-v71-nmake:
     extends:
         - .windows_msvc_v71_nmake
         - .cmake_test_windows_nmake
-        - .windows_builder_ext_tags
+        - .windows_tags_concurrent
         - .cmake_junit_artifacts
         - .run_dependent
     dependencies:
@@ -801,7 +801,7 @@ test:windows-openwatcom1.9:
     extends:
         - .windows_openwatcom1.9
         - .cmake_test_windows_openwatcom
-        - .windows_builder_ext_tags
+        - .windows_tags_concurrent
         - .cmake_junit_artifacts
         - .run_dependent
     dependencies:

.gitlab/os-windows.yml

@@ -104,7 +104,7 @@
 
 ## Tags
 
-.windows_builder_tags:
+.windows_tags_nonconcurrent_vs2019:
     tags:
         - cmake # Since this is a bare runner, pin to a project.
         - windows
@@ -113,7 +113,7 @@
         - msvc-19.29-16.11
         - nonconcurrent
 
-.windows_builder_ext_tags:
+.windows_tags_concurrent_vs2019:
     tags:
         - cmake # Since this is a bare runner, pin to a project.
         - windows
@@ -122,6 +122,13 @@
         - msvc-19.29-16.11
         - concurrent
 
+.windows_tags_concurrent:
+    tags:
+        - cmake # Since this is a bare runner, pin to a project.
+        - windows
+        - shell
+        - concurrent
+
 ## Windows-specific scripts
 
 .before_script_windows: &before_script_windows