build(deps): bump peter-evans/create-pull-request from 5 to 6 (#428)

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 5 to 6.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v5...v6)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Rok Roškar <[email protected]>

.github/workflows/update-default-image-in-notebooks.yml

@@ -24,7 +24,7 @@ jobs:
       run: |
         sed -i -e 's|defaultSessionImage:.*|defaultSessionImage: "${{ env.NEW_IMAGE }}"|' ./helm-chart/renku-notebooks/values.yaml
     - name: Submit PR
-      uses: peter-evans/create-pull-request@v5
+      uses: peter-evans/create-pull-request@v6
       with:
         token: ${{ secrets.RENKUBOT_GITHUB_TOKEN }}
         commit-message: "chore(app): Update default session image to ${{ env.NEW_IMAGE }}"