💚 Fix tag name

Author: technocidal

.github/workflows/swift.yml

@@ -22,8 +22,8 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          # Tag should look like this [TODAY] ([BUILD_NUMBER])
-          tag_name: ${{ github.event.head_commit.timestamp }} (${{ steps.build_number.outputs.build_number }})
+          # Tag should look like this [YYYY.MM.DD] ([BUILD_NUMBER])
+          tag_name: ${{ github.event.head_commit.timestamp }}_${{ steps.build_number.outputs.build_number }}
           release_name: ${{ github.event.head_commit.timestamp }} (${{ steps.build_number.outputs.build_number }})
           body: ""
           draft: false