build: bump peter-evans/create-pull-request from 6 to 7

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/update-mbedtls.yml

@@ -63,7 +63,7 @@ jobs:
           sed -i 's/^\(DEFAULT_MBEDTLS_VERSION=\).\+$/\1'${NEW_MBEDTLS_VERSION}'/' compileMbedtls.sh
           sed -i 's/^\(mbedtlsVersion=\).\+$/\1'${NEW_MBEDTLS_VERSION}'/' kotlin-mbedtls/src/main/resources/mbedtls.properties
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@v7
         with:
           branch: update-mbedtls
           delete-branch: true