Bump peter-evans/create-pull-request from 6 to 7 (#575)

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 6 to 7.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v6...v7)

---
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>

.github/workflows/release.yml

@@ -90,7 +90,7 @@ jobs:
           DITA_HOME: ${{ github.workspace }}/dita-ot-${{ env.DITA_OT_VERSION }}
           RELEASE_DITA_OT: ${{ github.workspace }}/src-dita-ot/dita-ot-${{ env.RELEASE_VERSION }}
       - name: Create release PR
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@v7
         with:
           branch: release/${{ env.RELEASE_VERSION }}
           title: 'Update site for ${{ env.RELEASE_VERSION }}'
@@ -132,7 +132,7 @@ jobs:
         with:
           cmd: yq -i '.inputs.DITA_OT_VERSION.default = "${{ env.RELEASE_VERSION }}"' '.github/actions/render/action.yml'
       - name: Create release PR
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@v7
         with:
           branch: feature/update-github-actions-${{ env.RELEASE_VERSION }}
           title: 'Update docs GitHub Actions for ${{ env.RELEASE_VERSION }}'