fix: windows relup is not supported

.github/workflows/build_packages.yaml

@@ -84,6 +84,7 @@ jobs:
         PYTHON: python
         DIAGNOSTIC: 1
         PROFILE: emqx
+        SYSTEM: windows
       working-directory: source
       run: |
         erl -eval "erlang:display(crypto:info_lib())" -s init stop

.github/workflows/build_slim_packages.yaml

@@ -79,6 +79,7 @@ jobs:
       env:
         PYTHON: python
         DIAGNOSTIC: 1
+        SYSTEM: windows
       run: |
         erl -eval "erlang:display(crypto:info_lib())" -s init stop
         make ${{ matrix.profile }}-zip

scripts/relup-base-vsns.escript

@@ -161,6 +161,9 @@ fetch_version(Vsn, VsnMap) ->
 filter_froms(Froms0, AvailableVersionsIndex) ->
     Froms1 =
         case os:getenv("SYSTEM") of
+            %% we do not support relup for windows
+            "windows" ->
+                [];
             %% debian11 is introduced since v4.4.2 and e4.4.2
             %% exclude tags before them
             "debian11" ->