fix: github workflows' python versions

Author: Cecylia Borek

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7
+          python-version: 3.9
       - name: Install build and twine
         run: pip install build twine
       - name: Build package

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         os:
-          - ubuntu-latest
+          - ubuntu-22.04
         python: [ 3.7, 3.9, 3.13]
         splunk-version:
           - "8.1"