ci: Fix auto release tag workflow

By supplying tag message file via additional Python step. This allows to
support `backticks` in tag messages.

.github/workflows/release_tag.yml

@@ -44,16 +44,18 @@ jobs:
         name: "Run badabump"
         run: "badabump-ci prepare_tag"
 
+      - name: "Save tag message into the file"
+        run: |
+          with open("./tag_message.txt", "w+") as handler:
+              handler.write("""${{ steps.badabump.outputs.tag_message }}""")
+        shell: "python"
+
       - name: "Create release tag from latest commit"
         run: |
           set -euo pipefail
 
           git config user.name badabump-release-bot[bot]
           git config user.email badabump-release-bot[bot]@users.noreply.github.com
 
-          cat > ./tag_message.txt <<EOF
-          ${{ steps.badabump.outputs.tag_message }}
-          EOF
-
           git tag -a ${{ steps.badabump.outputs.tag_name }} -F ./tag_message.txt
           git push --tag