GH Actions: Bump peter-evans/create-pull-request from 5 to 6

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]>

Author: dependabot[bot]

.github/workflows/update-cacert.yml

@@ -86,7 +86,7 @@ jobs:
         run: echo "DATE=$(/bin/date -u "+%F")" >> $GITHUB_OUTPUT
 
       - name: Create pull request
-        uses: peter-evans/create-pull-request@v5
+        uses: peter-evans/create-pull-request@v6
         with:
           base: ${{ steps.branches.outputs.BASE }}
           branch: ${{ steps.branches.outputs.PR_BRANCH }}

.github/workflows/update-website.yml

@@ -165,7 +165,7 @@ jobs:
         run: git status -vv --untracked=all
 
       - name: Create pull request
-        uses: peter-evans/create-pull-request@v5
+        uses: peter-evans/create-pull-request@v6
         with:
           base: gh-pages
           branch: feature/auto-ghpages-update-${{ steps.get_pr_info.outputs.REF }}