Revert "build(deps): update check-jsonschema requirement from ==0.30.* to ==0.31.* in /requirements (#352)"

This reverts commit 04e5367.

Author: Borda

.github/workflows/check-schema.yml

@@ -26,10 +26,6 @@ jobs:
         uses: actions/checkout@v4
         with:
           submodules: recursive
-      - name: Set up Python 🐍
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.x"
 
       # if actions version is given install defined versions
       - name: "[optional] Pull reusable 🤖 actions"

requirements/gha-schema.txt

@@ -1 +1 @@
-check-jsonschema ==0.31.*
+check-jsonschema ==0.30.*