CI: Add toggles to publish by platform

.forgejo/workflows/publish.yaml

@@ -9,10 +9,21 @@ on:
         type: boolean
         required: false
         default: true
+      linux:
+        description: 'Build Linux binaries'
+        type: boolean
+        required: false
+        default: true
+      windows:
+        description: 'Build Windows binary'
+        type: boolean
+        required: false
+        default: true
 
 jobs:
   publish:
     runs-on: docker
+    if: ${{ inputs.linux }}
     timeout-minutes: 20
     container:
       image: rust:slim
@@ -76,6 +87,7 @@ jobs:
 
   publish-windows:
     runs-on: docker
+    if: ${{ inputs.windows }}
     timeout-minutes: 20
     container:
       image: messense/cargo-xwin