Update git submodules
- Update vendor from branch 'REL1_35' to 254f475e8df5773d2298439ce5c12034c7f349da
- Remove conflict markers from composer/semver/CHANGELOG.md
Via rm -rf composer/semver && composer install --no-dev
Change-Id: Ib7efed1b13dd9ac8e0bbb58621df8c06bfba8862
- Remove conflict markers from composer/semver/CHANGELOG.md