Add version update to release workflow (#24)

Resolves #23

.github/workflows/release.yml

@@ -103,4 +103,27 @@ jobs:
           body: ${{ steps.build_changelog.outputs.changelog }}
           name: Release ${{ needs.version.outputs.RELEASE_VERSION }}
           tag: ${{ needs.version.outputs.RELEASE_VERSION }}
-          token: ${{ secrets.PUSH_PAT }}
+          token: ${{ secrets.PUSH_PAT }}
+  update-version:
+    runs-on: ubuntu-latest
+    needs:
+      - create_release
+      - version
+    steps:
+    - name: 'Checkout Repository'
+      uses: actions/checkout@v3
+      with:
+        token: ${{ secrets.PUSH_PAT }}
+    - name: Prepare next dev version
+      id: prepare_next_dev
+      run: |
+        sed -i -e 's/${{ needs.version.outputs.CURRENT_VERSION }}/${{ needs.version.outputs.NEXT_VERSION }}/g' gradle.properties
+        sed -i -E -e 's/json-schema-validator(:|\/)[0-9]+\.[0-9]+\.[0-9]+/json-schema-validator\1${{ needs.version.outputs.RELEASE_VERSION }}/g' README.md
+        sed -i -E -e 's/json-schema-validator(:|\/)[0-9]+\.[0-9]+\.[0-9]+(-SNAPSHOT)/json-schema-validator\1${{ needs.version.outputs.NEXT_VERSION }}/g' README.md
+    - name: Commit next dev version
+      id: commit_next_dev
+      uses: EndBug/add-and-commit@v9
+      with:
+        add: "['gradle.properties', 'README.md']"
+        default_author: github_actions
+        message: "Prepare next version"